1489:
1501:
2147:
1445:
1457:
1473:
1517:
1918:
2929:
63:
1185:): there should be no space between the words and the oxidation state in parentheses (between "iron" and (III)). The oxidation numbers are stated only for cations, not for anions. Where the oxidation number is obvious (i.e. group 1 or group 2 metals), it is not included. Compounds with a substantial degree of covalency do not use Stock nomenclature.
1096:
this guideline are articles or sections of articles on biographies and history. Even in regular articles, scientific advances are sometimes attributed to noteworthy individuals and institutions, especially when this information illuminates the content or enlivens the prose. Attribution to individuals and institutions is subject to guidelines on
1643:
Accidents and incidents occur all the time. While their scale and magnitude may merit inclusion in
Knowledge on grounds of notability, that such an accident has occurred is not sufficient justification for inclusion in the context of an article about chemicals. Knowledge does not attempt to dispense
1040:
and often marginalize seemingly small but significant improvements that have been hammered out by previous editors. If an editor feels that a mature article warrants a major revision, it is both customary and considerate for the revising editor to announce their intentions on the relevant talk page
1670:
Claims and statements in articles should mainly be supported by references to textbooks, monographs, and related book series. In many cases, especially for historic purposes, the primary literature (journals) are used. Intermediate between journal articles, which are often highly specialized, and
1095:
In general, descriptions of chemical knowledge do not mention who did the work or where the discoveries were made, in part because such information is available in the citations. This approach simplifies the presentation and helps readers focus on facts and explanations. The obvious exceptions to
1638:
Journalism. Knowledge should not offer first-hand news reports on breaking stories. Knowledge is not a primary source. However, our sister project
Wikinews does exactly that, and is intended to be a primary source. Knowledge does have many encyclopedia articles on topics of historical significance
1154:
Systematic nomenclature, while being precise, can be cumbersome. Commonly accepted trivial or alternative names are preferred over systematic names. In particular, IUPAC recommends the use of non-systematic names for some organic compounds, and these recommendations should be followed in article
1565:
aspire to be an MSDS. The hazards associated with a chemical compound should ordinarily be described in the
Chembox (via GHSPictograms, GHSSignalWord, NFPA, or MainHazard parameters; further elaborated in H- and P-phrases). The information in the Chembox is sufficient for most compounds. News
1924:
Although many organometallic reagents have complex structures involving solvation or clusters, these reagents are ordinarily depicted in simplified structures (RMgX with two-coordinate Mg, BuLi with one-coordinate Li, etc.). To facilitate sharing of drawings between different language wikis,
1592:
Descriptions of hazards should, as far as possible, be based on published, peer-reviewed sources (which should, of course, be cited at the appropriate point in the article). A list of resources for chemical safety information is given in the external links section of these guidelines.
1648:) Historic accidents and incidents may only be contextualized in the discussion on the specific hazards of certain chemicals, without serving as case studies in itself. To reiterate, if such accidents are sufficiently notable, they should have their own article (e.g. discussion in
1049:(IUPAC) provides recommendations and definitions for nomenclature and terminology. Knowledge editors strive to be mindful of IUPAC's advice but do not follow this advice rigidly, especially when the advice deviates from mainstream usage (see comments below on nomenclature).
1437:
Images of chemical compounds or their solutions are useful to readers. Most useful are colored compounds but even colorless/white samples/solutions can be useful. The provenance of these images is however impossible to verify. The following images provide some guidance.
1741:
Preparation. It is our tradition to cite the first preparation of a compound. For commercially important compounds, it is often useful to distinguish reactions used in industrial production separately from "laboratory routes". For natural products, the biosynthesis is
1016:. Important topics include compounds, reactions, methods of analysis, instrumentation/apparatus, techniques, significant chemists, branches of chemistry, chemical theories, and principles which have received significant coverage in independent reliable sources.
1937:(an example is given below). Modern textbooks and journals do not use them, so Knowledge should not pioneer a new way of describing chemical reactions. They confuse readers trying to understand basics, since stoichiometry is conflated with phase information.
1584:
policy, but not entirely. There is no need to include a section which merely states "all chemical compounds should be treated with the utmost precaution"; such a section tells the reader nothing. If hazards are unknown, there is nothing for
Knowledge to
1841:
Where a compound class does not have sufficient detail to merit a full article, it should be merged to the parent article (usually that of the acid). Articles named after a parent compound should generally appear at the plural of the parent compound.
1488:
1737:
Structure. The structures of many organic compounds are obvious, but inorganic and metal-containing compounds often adopt nonintuitive structures. When possible, their structures should be described, ideally based on crystallographic or related
1500:
1925:
reagents above and below arrows should consist of formulas, not words. Experimental conditions are ordinarily omitted from equations. The prose can comment on conditions, yields, and other details. Equations are ordinarily not numbered.
1444:
1456:
1188:
Isotopes should be labelled by their mass number, e.g. C and F. Deuterium (H) and tritium (H) may be labelled "D" (or "D") and "T" (or "T"), respectively. Deuterated solvents for NMR use are customarily described variously as:
1057:
The thousands of
Knowledge articles about chemistry benefit from continuing improvements that address clarity and content. Very long articles are difficult to read and maintain, so at some stage, long articles are often
1710:
are permissible for substances of variable composition such as polymers. For compounds of defined composition, the molar masses should be available as well. The article should cover these aspects as appropriate:
1044:
Being affiliated with or bound by no scientific organizations, the content in
Knowledge-Chemistry is not constrained by recommendations or rules, but seeks to objectively describe knowledge. For example, the
1675:, are sometimes cited, especially for historic purposes, but they are less useful because they are not vetted on scholarly basis, they are sometimes not very readable, and often they are not very available.
1070:
Articles are placed in one or more categories to help readers and editors locate similar topics. When categories become too large to be readily searched, it is common to create subcategories. For example,
2070:
This section should include a broad description of the reaction in both text and reaction scheme. References to review articles are preferred. References to the discovery of the reaction is also welcome.
1123:, the type of English used to write an article does not matter, but it should be consistent. The following exceptions apply for chemical names, when the article itself is primarily about chemistry:
2264:
155:
1516:
2732:
1665:
951:
667:
1618:
Depending on the extent and nature of the information, toxicological content may be incorporated into the Safety section or it may be separate. If the compound is a drug, follow
1472:
1041:
and to heed the consensus of the responses. Typically, responses to such announcements can take days to accumulate, so major revisions require a sense of pace and patience.
2600:
2595:
542:
532:
1588:
The description of hazards should avoid hyperbole. The role of
Knowledge is to give balanced and accurate information, to allow its readers to reach their own conclusions.
1366:
that merits description. Since focus of the articles and the readership is on technical aspects, sections on etymology are ordinarily placed near the end of the article.
1889:
can be typed out in text. Reactions should be indented using a colon (:), and not centered. Separate the number of molecules from the molecule symbol by a space (i.e. 3 H
1794:. For example, several different hydrates are known for copper(II) sulfate as well as the anhydrous form. All of these compounds are discussed in a single article,
1745:
Uses. Although compounds can be used for diverse and weird ways, this section emphasizes, hierarchically, substantial commercial applications and laboratory uses.
2585:
522:
1450:
Methylcobalamin: the adjacent labeled vial strengthens verisimilitude or reliability. Presentation of the solution is helpful for this deeply colored compound.
2655:
592:
2815:
2742:
2670:
2553:
1375:
941:
768:
677:
607:
478:
2787:
2722:
2665:
2620:
2094:
Side reactions and exceptions might be included. If the outcome of the reaction is affected by small changes, such descriptions should go in this section.
1807:
926:
733:
657:
602:
557:
2712:
2650:
2640:
694:
587:
582:
1984:
unless they are relevant (e.g. thermochemistry, to illustrate precipitation for chemical separation). "Heat" should not be a reaction product; stating Δ
1062:(subdivided into two articles). Being a consensus driven process, plans for splitting are ordinarily discussed on the talk page for the parent article.
2625:
2291:
1956:
markup notations: the plain-text character set is adequate for most chemical equations; the change in size and font form is jarring to the reader. The
1087:. Prior to creating multiple categories, such plans are ordinarily discussed on the talk page for the parent article since they affect many articles.
562:
182:
1388:. ACS settings have been adopted as the convention. Images should be legible at 450 pixels wide, to avoid interference from the chembox on the right.
2660:
2610:
2590:
1672:
1046:
597:
547:
527:
2880:
2686:
2635:
2630:
2615:
2605:
1728:
1114:
813:
627:
572:
567:
552:
537:
2522:
450:
200:
2955:
2259:
150:
2727:
2430:
1689:
921:
662:
620:
515:
337:
1791:
1510:. The compound is so intensely colored that it would be helpful to have an image of a solution (with concentration and solvent specified).
1462:
Acetic acid: label provides verifiability and bottle gives scale reference. Even for a colorless liquid, some insight is provided into its
645:
495:
133:
2691:
2435:
2322:
2080:
Reaction mechanisms often include mention of stereochemistry, order of reaction, and, for inorganics, electron count and configuration.
712:
632:
285:
250:
217:
2146:
2840:
2749:
2737:
2569:
1548:
684:
672:
502:
364:
320:
986:
This page aims to be brief, touching on the general aspects of chemistry-related articles. In-depth guides are found in linked pages.
2472:
2404:
2342:
2337:
2317:
2271:
2197:
1835:
1494:
Sample of EDTA disodium salt but poorly verifiable (without even a label on bottle) and inappropriate in a chembox for the acid EDTA.
400:
389:
307:
237:
232:
212:
162:
1671:
books, which are not always available, are review series (e.g. Chemical
Reviews, Advances in Enzymology, etc.). Patents, which are
2782:
2645:
2425:
2296:
2154:
936:
911:
729:
577:
332:
187:
95:
2548:
2543:
2363:
2327:
2312:
2249:
473:
468:
262:
222:
207:
140:
2129:
Avoid language in schemes, which makes the images more versatile. Descriptions belong in the caption, which are readily edited.
2394:
297:
2707:
2517:
2512:
2276:
974:
689:
445:
440:
167:
1991:, or giving its sign is preferable (note that the use of phase information is essential for evaluating the thermodynamics):
2855:
2770:
2507:
2502:
2456:
2218:
841:
719:
435:
430:
376:
71:
2895:
2890:
2281:
2254:
828:
823:
172:
145:
1013:
2933:
2830:
2358:
2332:
2225:
846:
257:
227:
1577:
is a strong acid, and should not be stored with bases and reactive metals), do not create a separate sub-section here.
2775:
2286:
1917:
723:
177:
2497:
2482:
2477:
2399:
2389:
2373:
425:
410:
405:
302:
292:
272:
1731:) Often this content is included in the lede. Unless notable, properties listed in the ChemBox are not repeated.
1090:
2538:
2451:
2420:
2368:
1748:
Reactions. All chemical compounds undergo many reactions, so these reactions are expected to have applicability.
1025:
877:
459:
371:
327:
267:
1751:
History. Often this section would be superfluous to mention of the first preparation, but some compounds, e.g.,
2865:
2487:
1973:
1967:
1959:
1943:
803:
415:
1831:
classes of inorganic and coordination compounds: metal oxo compounds, metal carbonyl compounds, metal clusters
2190:
1580:
The description of hazards should avoid speculation. This recommendation is partly an extension of
Knowledge
1659:
2870:
2053:
Compounds and atoms in reactions should not be wikilinked. These links should be in the surrounding text.
969:
808:
1052:
2492:
2162:
1619:
1080:
420:
342:
2910:
1695:
1523:
1076:
916:
83:
2206:
1574:
1381:
1267:
1215:, etc. These established systems are all acceptable, but should remain consistent within an article.
1084:
1012:
Many chemical topics are suitable for inclusion; the central criterion is that the article meets the
946:
894:
109:
75:
17:
2825:
2820:
2810:
2183:
1787:
778:
773:
763:
117:
1867:
Preparation, ordinarily distinguishing between technical methods and those used in the laboratory
1032:, which allow changes to be evaluated by other editors. Long-standing or mature articles should
1734:
Occurrence. Usually occurrence refers natural products, compounds or ions that exist naturally.
1391:
Hydrogens should be implied (hidden), except for the benefit of the target audience. The use of
1139:" should be spelled this way regardless of the English variation used in the article, being the
2805:
1536:
758:
1774:
should not be listed unless the compound is rare and only available from one or two suppliers
1507:
2885:
2850:
2845:
2754:
1828:
classes of organic compounds (including many biochemicals): steroids, aldohexoses, terpenes
818:
793:
788:
699:
49:
42:
1279:(1s, 2p, 3d, ...) also shall be Roman. Numerals (1, 2, 3, ...) shall invariably be Roman.
8:
2875:
2232:
1282:
1218:
For organic radicals denoted by "R", indices used for numbering must be superscript: R−CH
1003:
870:
851:
91:
1801:
1631:
1566:
reports of routine accidents, even though they may be tragic, are usually not relevant.
2912:
2860:
1795:
1645:
1553:
The majority of compounds are described by a long list of potential hazards as well as
1182:
1140:
995:
798:
27:
1951:
1639:
that are currently in the news, and can be updated with recently verified information.
2835:
1886:
1653:
1150:" is preferred over "phosphane", being predominantly used in the chemical literature.
1072:
783:
2050:
A comma, period or other punctuation is not required at the end of a line equation.
1864:
Occurrence, usually involving natural occurrence as in nature or the mineral kingdom
1369:
1463:
1300:
1120:
1786:
Ordinarily, compounds that differ in terms of their solvent of crystallization or
1065:
82:
It is a generally accepted standard that editors should attempt to follow, though
35:
1649:
1296:
1255:
1059:
931:
2104:
In this section, not related reactions that are not mentioned in the above text.
1928:
1790:
are described in a single article. The discussion that led to this consensus is
1028:
is collaborative and consensus-driven. Edits to existing articles are typically
2914:
1977:
1721:
1581:
1323:
1276:
1272:
1250:
863:
121:
1625:
1526:
with labeled sample vial. This format is sufficient for most colored samples.
1342:
This style is selected because in most professional fonts only the minus sign
2949:
2081:
1532:
1479:
1246:
1156:
1097:
2056:
1432:
1019:
1601:
1880:
1683:
1108:
1357:
1308:
1159:
1870:
Reactions, if extensive, these entries should be aggregated thematically
1714:
2915:
1912:
Reactions in the form of images should also be indented using a colon:
1852:
Structure and bonding, including illustrative bond distance and angles.
1834:
elements are handled under a separate
Wikiproject with guidelines, see
1819:
polyatomic ions (nitrates, perchlorates, triflates, tetrafluoroborates)
1535:, be of the chemical subject of the article, and should be uploaded to
1354:
in width, so an en dash would look out of place in a skeletal formula.
1312:
1304:
1259:
123:
1858:
Characterization, discussing spectroscopic tools and illustrative data
1761:
Toxicology. Often this section is blended with safety. Ideally, the
1673:
considered self-published and primary sources for Knowledge's purposes
1613:
1558:
1554:
1363:
1240:
1147:
1136:
1678:
1644:
advise on what to do in the event of a (...) incident, either. (See
2169:
1727:
Properties (optional), the physical appearance of the material (at
119:
2175:
2157:, which is a good example of a quality organic reaction article.)
2132:
Reaction schemes are best aligned left without borders as follows:
1935:
not include phase definitions unless they are absolutely essential
1781:
1266:) and may not be italicized by any means, neither wiki syntax nor
1666:
Knowledge:Manual of Style/Chemistry/References and external links
1420:
1292:
1167:
1132:
1861:
Applications, in order of the scale or impact of the application
1752:
1694:
All articles on chemicals, real or hypothetical, should have a
1412:
1396:
1175:
1128:
2916:
1600:
to an article, and should be based (where at all possible) on
1542:
124:
2061:
Each reaction article should include the following sections:
1423:
or any atom, it should be clearly defined within the image.
1762:
1385:
1822:
functional groups (alcohols, aldehydes, acids, nitriles)
1596:
In general a safety section should only be used when it
1103:
2172:, so other language Wikipedias can use the same images.
2114:
This entire section should only be the following text:
1980:
are preferred to the molecular form. State symbols are
1698:. Formulae should be readily available, variables like
1808:
Knowledge:Manual of Style/Chemistry/Compound classes
989:
1816:
monoatomic ions (chloride, bromide; oxide, sulfide)
1812:These articles belong to one of these categories:
1602:peer-reviewed or otherwise highly reliable sources
1047:International Union of Pure and Applied Chemistry
2947:
1115:Knowledge:Manual of Style/Chemistry/Nomenclature
1825:"backbone" moieties, both organic and inorganic
1478:Anthracene crystals: label aids verifiability
1376:WP:Manual of Style/Chemistry/Structure drawing
2191:
1690:Knowledge:Manual of Style/Chemistry/Chemicals
871:
1573:If the hazards are relatively obvious (e.g.
1036:be rewritten in their entirety because such
2816:Categories, lists, and navigation templates
769:Categories, lists, and navigation templates
2198:
2184:
1549:Knowledge:Manual of Style/Chemistry/Safety
878:
864:
2165:and categorize the article appropriately.
1836:Knowledge:WikiProject Elements/Guidelines
14:
2948:
1038:large-scale changes inhibit discussion
94:. When in doubt, discuss first on the
2956:Knowledge Manual of Style (chemistry)
2179:
1362:Many chemical terms have interesting
1024:The style of editing embraced by the
74:is a part of the English Knowledge's
57:
2205:
1974:Help:Displaying a formula#Chemistry
1608:
1131:" (and related "sulfuric", etc.), "
23:
24:
2967:
1315:are used to represent the bonds:
1091:Attributions to people and places
90:edit to this page should reflect
2928:
2927:
2155:Horner–Wadsworth–Emmons reaction
2145:
2084:is helpful in organic chemistry.
1964:tag is a deprecated synonym for
1916:
1515:
1499:
1487:
1471:
1455:
1443:
61:
1845:Aspects to be covered include:
1322:C−C (C−C or C{{subst:
1178:over 2,6-diaminohexanoic acid.
1482:and container gives some scale
1427:
1297:normal for such compound terms
13:
1:
2733:References and external links
1660:References and external links
1407:, etc., is discouraged. When
1399:may be confusing. The use of
1053:Article curation and creation
1014:general notability guidelines
668:References and external links
7:
2586:Specific naming conventions
2163:reaction category hierarchy
1620:Knowledge:WikiProject Drugs
1539:whenever licensing allows.
1531:All images must follow the
1303:, the mathematical symbols
1081:Category:Secondary alcohols
1026:Knowledge chemistry project
523:Specific naming conventions
10:
2972:
2265:Organizing by subject area
1805:
1687:
1663:
1606:
1546:
1524:sodium hexachloroplatinate
1425:
1373:
1244:
1112:
1077:Category:Tertiary alcohols
993:
25:
2923:
2904:
2891:Wikimedia sister projects
2798:
2763:
2700:
2679:
2578:
2562:
2531:
2465:
2444:
2413:
2382:
2351:
2305:
2242:
2213:
1575:hexafluorophosphoric acid
1181:Stock nomenclature (e.g.
1085:Category:Primary alcohols
824:Wikimedia sister projects
18:Knowledge:Manual of Style
1720:Introductory paragraph (
1380:Appropriate formats are
1346:matches the double bond
1641:
2523:Writing about fiction
2168:Upload all images to
1664:Further information:
1636:
1508:rhodium(III) chloride
1295:(–), as is
1271:. Notation of atomic
451:Writing about fiction
156:Organizing by subject
110:Manual of Style (MoS)
84:occasional exceptions
2866:Talk page guidelines
2554:Stringed instruments
2260:Disambiguation pages
1755:, have rich history.
1098:conflict of interest
804:Talk page guidelines
479:Stringed instruments
151:Disambiguation pages
2671:Trinidad and Tobago
2601:France (and French)
2596:China (and Chinese)
2099:See also (optional)
1768:would be mentioned.
1622:' recommendations.
1569:Three main points:
1480:assuming good faith
1143:for these elements;
608:Trinidad and Tobago
543:France (and French)
533:China (and Chinese)
2871:Template namespace
2125:Additional notes:
2075:Reaction mechanism
1887:chemical reactions
1796:copper(II) sulfate
1411:is used to denote
1289:carbon–carbon bond
1183:iron(III) chloride
1075:has subcategories
809:Template namespace
753:Related guidelines
2943:
2942:
2881:Understandability
2743:Structure drawing
2692:Latter Day Saints
2493:Lyrics and poetry
2436:Stand-alone lists
2323:Dates and numbers
2170:Wikimedia Commons
1940:Avoid the use of
1897:). For example:
1654:methyl isocyanate
1632:WP:NOT#JOURNALISM
1561:. Knowledge does
1537:Wikimedia Commons
1370:Structure drawing
1301:skeletal formulas
1283:Skeletal formulas
1273:shells, subshells
1158:Examples include
1073:Category:Alcohols
1066:Category creation
984:
983:
942:Structure drawing
888:
887:
814:Understandability
744:
743:
678:Structure drawing
633:Latter Day Saints
486:
485:
421:Lyrics and poetry
343:Stand-alone lists
218:Dates and numbers
104:
103:
2963:
2931:
2930:
2917:
2841:Military history
2750:Computer science
2723:Compound classes
2570:Military history
2200:
2193:
2186:
2177:
2176:
2153:(Taken from the
2149:
2089:Scope (optional)
2065:A brief overview
1971:
1963:
1955:
1947:
1920:
1802:Compound classes
1609:§ Current events
1533:image use policy
1519:
1503:
1491:
1475:
1464:refractive index
1459:
1447:
1353:
1350:and triple bond
1349:
1345:
1332:C=C (equal sign)
1256:Chemical symbols
1236:
1006:
978:
927:Compound classes
890:
889:
880:
873:
866:
685:Computer science
658:Compound classes
503:Military history
395:
394:
359:
358:
125:
106:
105:
65:
64:
58:
52:
45:
38:
2971:
2970:
2966:
2965:
2964:
2962:
2961:
2960:
2946:
2945:
2944:
2939:
2919:
2918:
2913:
2900:
2794:
2759:
2696:
2675:
2574:
2558:
2527:
2473:Anime and manga
2461:
2440:
2409:
2405:Trivia sections
2378:
2364:Image placement
2347:
2343:Titles of works
2338:Text formatting
2301:
2292:Self-references
2272:Gender identity
2238:
2209:
2207:Manual of Style
2204:
2059:
2048:
2046:
2042:
2038:
2034:
2030:
2022:
2021:= −1409 kJ/mol)
2017:
2013:
2009:
2005:
2001:
1997:
1987:
1978:Ionic equations
1965:
1957:
1949:
1941:
1931:
1908:
1904:
1896:
1892:
1883:
1810:
1804:
1784:
1766:
1717:
1692:
1686:
1681:
1668:
1662:
1650:Bhopal disaster
1628:
1616:
1611:
1551:
1545:
1527:
1520:
1511:
1504:
1495:
1492:
1483:
1476:
1467:
1460:
1451:
1448:
1435:
1430:
1378:
1372:
1360:
1351:
1347:
1343:
1299:. However, for
1285:
1265:
1253:
1243:
1235:
1231:
1227:
1223:
1221:
1214:
1210:
1206:
1199:
1195:
1117:
1111:
1106:
1093:
1068:
1055:
1022:
1010:
1009:
1002:
998:
992:
972:
895:Manual of Style
884:
834:
833:
754:
746:
745:
740:
739:
715:
705:
704:
648:
638:
637:
623:
613:
612:
518:
508:
507:
498:
488:
487:
401:Anime and manga
392:
382:
381:
367:
356:
348:
347:
323:
313:
312:
308:Trivia sections
288:
278:
277:
263:Image placement
253:
243:
242:
238:Titles of works
233:Text formatting
203:
193:
192:
183:Self-references
163:Gender identity
136:
126:
120:
100:
99:
86:may apply. Any
76:Manual of Style
62:
56:
55:
48:
41:
34:
30:
22:
21:
20:
12:
11:
5:
2969:
2959:
2958:
2941:
2940:
2938:
2937:
2924:
2921:
2920:
2911:
2909:
2908:
2906:
2902:
2901:
2899:
2898:
2893:
2888:
2883:
2878:
2873:
2868:
2863:
2858:
2853:
2848:
2843:
2838:
2833:
2828:
2826:Citing sources
2823:
2821:Categorization
2818:
2813:
2811:Article titles
2808:
2802:
2800:
2796:
2795:
2793:
2792:
2791:
2790:
2783:Figure skating
2780:
2779:
2778:
2767:
2765:
2761:
2760:
2758:
2757:
2752:
2747:
2746:
2745:
2740:
2735:
2730:
2725:
2715:
2710:
2704:
2702:
2698:
2697:
2695:
2694:
2689:
2683:
2681:
2677:
2676:
2674:
2673:
2668:
2663:
2658:
2653:
2648:
2643:
2638:
2633:
2628:
2623:
2618:
2613:
2608:
2603:
2598:
2593:
2588:
2582:
2580:
2576:
2575:
2573:
2572:
2566:
2564:
2560:
2559:
2557:
2556:
2551:
2546:
2541:
2535:
2533:
2529:
2528:
2526:
2525:
2520:
2515:
2510:
2505:
2500:
2495:
2490:
2485:
2480:
2475:
2469:
2467:
2463:
2462:
2460:
2459:
2454:
2448:
2446:
2442:
2441:
2439:
2438:
2433:
2431:Road junctions
2428:
2426:Lists of works
2423:
2417:
2415:
2411:
2410:
2408:
2407:
2402:
2397:
2392:
2386:
2384:
2380:
2379:
2377:
2376:
2371:
2366:
2361:
2355:
2353:
2349:
2348:
2346:
2345:
2340:
2335:
2330:
2325:
2320:
2318:Capitalization
2315:
2309:
2307:
2303:
2302:
2300:
2299:
2297:Words to watch
2294:
2289:
2284:
2279:
2274:
2269:
2268:
2267:
2257:
2252:
2246:
2244:
2240:
2239:
2237:
2236:
2229:
2222:
2214:
2211:
2210:
2203:
2202:
2195:
2188:
2180:
2174:
2173:
2166:
2151:
2150:
2141:Result being:
2139:
2138:
2134:
2133:
2130:
2123:
2122:
2121:
2120:
2118:
2117:==References==
2111:
2110:
2106:
2105:
2101:
2100:
2096:
2095:
2091:
2090:
2086:
2085:
2077:
2076:
2072:
2071:
2067:
2066:
2058:
2055:
2044:
2040:
2036:
2032:
2028:
2026:
2015:
2011:
2007:
2003:
1999:
1995:
1993:
1985:
1930:
1929:Line equations
1927:
1922:
1921:
1910:
1909:
1906:
1905:O → 2 NaOH + H
1902:
1894:
1890:
1882:
1879:
1878:
1877:
1874:
1871:
1868:
1865:
1862:
1859:
1856:
1853:
1850:
1839:
1838:
1832:
1829:
1826:
1823:
1820:
1817:
1803:
1800:
1783:
1780:
1779:
1778:
1775:
1769:
1764:
1759:
1756:
1749:
1746:
1743:
1739:
1735:
1732:
1725:
1716:
1713:
1685:
1682:
1680:
1677:
1661:
1658:
1627:
1626:Current events
1624:
1615:
1612:
1598:adds something
1590:
1589:
1586:
1578:
1544:
1541:
1529:
1528:
1521:
1514:
1512:
1505:
1498:
1496:
1493:
1486:
1484:
1477:
1470:
1468:
1461:
1454:
1452:
1449:
1442:
1434:
1431:
1371:
1368:
1359:
1356:
1340:
1339:
1336:
1333:
1330:
1327:
1320:
1284:
1281:
1263:
1251:Template:Chem2
1242:
1239:
1233:
1229:
1225:
1219:
1212:
1208:
1204:
1197:
1193:
1152:
1151:
1144:
1110:
1107:
1105:
1102:
1092:
1089:
1067:
1064:
1054:
1051:
1021:
1020:Editing policy
1018:
1008:
1007:
999:
994:
991:
988:
982:
981:
980:
979:
964:
963:
959:
958:
957:
956:
954:external links
953:
952:References and
949:
944:
939:
934:
929:
924:
919:
914:
912:Article titles
906:
905:
899:
898:
886:
885:
883:
882:
875:
868:
860:
857:
856:
855:
854:
849:
844:
836:
835:
832:
831:
826:
821:
816:
811:
806:
801:
796:
791:
786:
781:
779:Citing sources
776:
774:Categorization
771:
766:
764:Article titles
761:
755:
752:
751:
748:
747:
742:
741:
738:
737:
730:Figure skating
727:
716:
711:
710:
707:
706:
703:
702:
697:
692:
687:
682:
681:
680:
675:
670:
665:
660:
649:
644:
643:
640:
639:
636:
635:
630:
624:
619:
618:
615:
614:
611:
610:
605:
600:
595:
590:
585:
580:
575:
570:
565:
560:
555:
550:
545:
540:
535:
530:
525:
519:
514:
513:
510:
509:
506:
505:
499:
494:
493:
490:
489:
484:
483:
482:
481:
476:
471:
463:
462:
456:
455:
454:
453:
448:
443:
438:
433:
428:
423:
418:
413:
408:
403:
393:
388:
387:
384:
383:
380:
379:
374:
368:
363:
362:
357:
354:
353:
350:
349:
346:
345:
340:
338:Road junctions
335:
333:Lists of works
330:
324:
319:
318:
315:
314:
311:
310:
305:
300:
295:
289:
284:
283:
280:
279:
276:
275:
270:
265:
260:
254:
249:
248:
245:
244:
241:
240:
235:
230:
225:
220:
215:
213:Capitalization
210:
204:
199:
198:
195:
194:
191:
190:
188:Words to watch
185:
180:
175:
170:
165:
160:
159:
158:
148:
143:
137:
132:
131:
128:
127:
122:
118:
116:
113:
112:
102:
101:
81:
80:
68:
66:
54:
53:
46:
39:
31:
26:
15:
9:
6:
4:
3:
2:
2968:
2957:
2954:
2953:
2951:
2936:
2935:
2926:
2925:
2922:
2907:
2903:
2897:
2894:
2892:
2889:
2887:
2884:
2882:
2879:
2877:
2874:
2872:
2869:
2867:
2864:
2862:
2859:
2857:
2854:
2852:
2849:
2847:
2844:
2842:
2839:
2837:
2834:
2832:
2829:
2827:
2824:
2822:
2819:
2817:
2814:
2812:
2809:
2807:
2804:
2803:
2801:
2797:
2789:
2786:
2785:
2784:
2781:
2777:
2774:
2773:
2772:
2769:
2768:
2766:
2762:
2756:
2753:
2751:
2748:
2744:
2741:
2739:
2736:
2734:
2731:
2729:
2726:
2724:
2721:
2720:
2719:
2716:
2714:
2711:
2709:
2706:
2705:
2703:
2699:
2693:
2690:
2688:
2685:
2684:
2682:
2678:
2672:
2669:
2667:
2664:
2662:
2659:
2657:
2654:
2652:
2649:
2647:
2644:
2642:
2639:
2637:
2634:
2632:
2629:
2627:
2624:
2622:
2619:
2617:
2614:
2612:
2609:
2607:
2604:
2602:
2599:
2597:
2594:
2592:
2589:
2587:
2584:
2583:
2581:
2577:
2571:
2568:
2567:
2565:
2561:
2555:
2552:
2550:
2549:Record charts
2547:
2545:
2544:Music samples
2542:
2540:
2537:
2536:
2534:
2530:
2524:
2521:
2519:
2516:
2514:
2511:
2509:
2506:
2504:
2501:
2499:
2496:
2494:
2491:
2489:
2486:
2484:
2481:
2479:
2476:
2474:
2471:
2470:
2468:
2464:
2458:
2455:
2453:
2450:
2449:
2447:
2443:
2437:
2434:
2432:
2429:
2427:
2424:
2422:
2419:
2418:
2416:
2412:
2406:
2403:
2401:
2398:
2396:
2393:
2391:
2388:
2387:
2385:
2381:
2375:
2372:
2370:
2367:
2365:
2362:
2360:
2357:
2356:
2354:
2350:
2344:
2341:
2339:
2336:
2334:
2331:
2329:
2328:Pronunciation
2326:
2324:
2321:
2319:
2316:
2314:
2313:Abbreviations
2311:
2310:
2308:
2304:
2298:
2295:
2293:
2290:
2288:
2285:
2283:
2280:
2278:
2275:
2273:
2270:
2266:
2263:
2262:
2261:
2258:
2256:
2253:
2251:
2250:Accessibility
2248:
2247:
2245:
2241:
2235:
2234:
2230:
2228:
2227:
2223:
2221:
2220:
2216:
2215:
2212:
2208:
2201:
2196:
2194:
2189:
2187:
2182:
2181:
2178:
2171:
2167:
2164:
2160:
2159:
2158:
2156:
2148:
2144:
2143:
2142:
2136:
2135:
2131:
2128:
2127:
2126:
2116:
2115:
2113:
2112:
2108:
2107:
2103:
2102:
2098:
2097:
2093:
2092:
2088:
2087:
2083:
2082:Arrow pushing
2079:
2078:
2074:
2073:
2069:
2068:
2064:
2063:
2062:
2054:
2051:
2025:
2020:
1992:
1990:
1983:
1979:
1975:
1969:
1961:
1953:
1945:
1938:
1936:
1926:
1919:
1915:
1914:
1913:
1900:
1899:
1898:
1893:instead of 3H
1888:
1875:
1872:
1869:
1866:
1863:
1860:
1857:
1854:
1851:
1848:
1847:
1846:
1843:
1837:
1833:
1830:
1827:
1824:
1821:
1818:
1815:
1814:
1813:
1809:
1799:
1797:
1793:
1789:
1776:
1773:
1770:
1767:
1760:
1757:
1754:
1750:
1747:
1744:
1740:
1736:
1733:
1730:
1726:
1723:
1719:
1718:
1712:
1709:
1705:
1701:
1697:
1691:
1679:Article types
1676:
1674:
1667:
1657:
1655:
1651:
1647:
1640:
1635:
1633:
1623:
1621:
1610:
1605:
1603:
1599:
1594:
1587:
1583:
1579:
1576:
1572:
1571:
1570:
1567:
1564:
1560:
1556:
1550:
1540:
1538:
1534:
1525:
1518:
1513:
1509:
1502:
1497:
1490:
1485:
1481:
1474:
1469:
1465:
1458:
1453:
1446:
1441:
1440:
1439:
1433:Sample images
1429:
1424:
1422:
1418:
1414:
1410:
1406:
1402:
1398:
1394:
1389:
1387:
1383:
1377:
1367:
1365:
1355:
1337:
1334:
1331:
1328:
1325:
1321:
1318:
1317:
1316:
1314:
1310:
1306:
1302:
1298:
1294:
1290:
1280:
1278:
1274:
1270:
1268:<math: -->
1261:
1257:
1252:
1248:
1247:Template:Chem
1238:
1216:
1203:
1192:
1186:
1184:
1179:
1177:
1173:
1172:methylbenzene
1169:
1165:
1164:ethanoic acid
1161:
1157:
1149:
1145:
1142:
1138:
1134:
1130:
1126:
1125:
1124:
1122:
1116:
1101:
1099:
1088:
1086:
1082:
1078:
1074:
1063:
1061:
1050:
1048:
1042:
1039:
1035:
1031:
1027:
1017:
1015:
1005:
1001:
1000:
997:
987:
976:
971:
968:
967:
966:
965:
961:
960:
955:
950:
948:
945:
943:
940:
938:
935:
933:
930:
928:
925:
923:
920:
918:
915:
913:
910:
909:
908:
907:
904:
901:
900:
897:
896:
892:
891:
881:
876:
874:
869:
867:
862:
861:
859:
858:
853:
850:
848:
845:
843:
840:
839:
838:
837:
830:
827:
825:
822:
820:
817:
815:
812:
810:
807:
805:
802:
800:
797:
795:
792:
790:
787:
785:
782:
780:
777:
775:
772:
770:
767:
765:
762:
760:
757:
756:
750:
749:
735:
731:
728:
725:
721:
718:
717:
714:
709:
708:
701:
698:
696:
693:
691:
688:
686:
683:
679:
676:
674:
671:
669:
666:
664:
661:
659:
656:
655:
654:
651:
650:
647:
642:
641:
634:
631:
629:
626:
625:
622:
617:
616:
609:
606:
604:
601:
599:
596:
594:
591:
589:
586:
584:
581:
579:
576:
574:
571:
569:
566:
564:
561:
559:
556:
554:
551:
549:
546:
544:
541:
539:
536:
534:
531:
529:
526:
524:
521:
520:
517:
512:
511:
504:
501:
500:
497:
492:
491:
480:
477:
475:
474:Record charts
472:
470:
469:Music samples
467:
466:
465:
464:
461:
458:
457:
452:
449:
447:
444:
442:
439:
437:
434:
432:
429:
427:
424:
422:
419:
417:
414:
412:
409:
407:
404:
402:
399:
398:
397:
396:
391:
386:
385:
378:
375:
373:
370:
369:
366:
361:
360:
355:By topic area
352:
351:
344:
341:
339:
336:
334:
331:
329:
326:
325:
322:
317:
316:
309:
306:
304:
301:
299:
296:
294:
291:
290:
287:
282:
281:
274:
271:
269:
266:
264:
261:
259:
256:
255:
252:
247:
246:
239:
236:
234:
231:
229:
226:
224:
223:Pronunciation
221:
219:
216:
214:
211:
209:
208:Abbreviations
206:
205:
202:
197:
196:
189:
186:
184:
181:
179:
176:
174:
171:
169:
166:
164:
161:
157:
154:
153:
152:
149:
147:
144:
142:
141:Accessibility
139:
138:
135:
130:
129:
115:
114:
111:
108:
107:
97:
93:
89:
85:
79:
77:
73:
67:
60:
59:
51:
47:
44:
40:
37:
33:
32:
29:
19:
2932:
2896:WikiProjects
2806:Article size
2717:
2395:Lead section
2231:
2224:
2217:
2152:
2140:
2124:
2060:
2052:
2049:
2024:instead of:
2023:
2018:
1988:
1981:
1939:
1934:
1932:
1923:
1911:
1884:
1849:Nomenclature
1844:
1840:
1811:
1785:
1771:
1707:
1703:
1699:
1693:
1669:
1642:
1637:
1629:
1617:
1597:
1595:
1591:
1568:
1562:
1552:
1530:
1436:
1416:
1408:
1404:
1400:
1392:
1390:
1379:
1361:
1341:
1288:
1286:
1254:
1217:
1201:
1190:
1187:
1180:
1171:
1163:
1153:
1118:
1109:Nomenclature
1094:
1069:
1056:
1043:
1037:
1033:
1029:
1023:
1011:
985:
937:Nomenclature
902:
893:
829:WikiProjects
759:Article size
652:
298:Lead section
87:
69:
2788:Terminology
2708:Mathematics
2656:Philippines
2518:Visual arts
2513:Video games
2277:Hidden text
2161:Follow the
2119:{{reflist}}
2002:OH(g) + 3 O
1806:Main page:
1738:techniques.
1688:Main page:
1646:WP:NOTGUIDE
1547:Main page:
1428:§ Reactions
1374:Main page:
1335:Triple bond
1329:Double bond
1319:Single bond
1160:acetic acid
1141:IUPAC names
1113:Main page:
1030:incremental
734:Terminology
690:Mathematics
593:Philippines
446:Visual arts
441:Video games
168:Hidden text
88:substantive
2886:User pages
2851:Signatures
2846:Notability
2771:Cue sports
2508:Television
2503:Philosophy
2457:Trademarks
2306:Formatting
2109:References
2057:Sectioning
2006:(g) → 2 CO
1901:2 Na + 2 H
1855:Properties
1777:References
1742:described.
1715:Sectioning
1614:Toxicology
1607:See also:
1522:Sample of
1506:Sample of
1426:See also:
1395:to denote
1287:In prose,
1245:See also:
962:Categories
819:User pages
794:Signatures
789:Notability
720:Cue sports
436:Television
431:Philosophy
377:Trademarks
201:Formatting
50:WP:CHEMMOS
43:WP:MOSCHEM
2728:Chemicals
2718:Chemistry
2666:Singapore
2646:Macedonia
2621:Indonesia
2282:Infoboxes
2255:Biography
2226:Directory
2047:O + heat
2035:OH + 3 O
2010:(g) + 3 H
1954:chem: -->
1881:Reactions
1788:hydration
1772:Suppliers
1684:Compounds
1652:, not in
1559:P-phrases
1364:etymology
1358:Etymology
1258:shall be
1200:OD, DMSO-
1189:methanol-
1148:phosphine
1137:aluminium
1121:WP:ENGVAR
970:Templates
922:Chemicals
917:Chemboxes
903:Chemistry
663:Chemicals
653:Chemistry
603:Singapore
578:Macedonia
558:Indonesia
173:Infoboxes
146:Biography
96:talk page
92:consensus
72:guideline
28:Shortcuts
2950:Category
2934:Category
2861:Subpages
2856:Overview
2836:Hatnotes
2831:Contents
2755:Taxonomy
2713:Medicine
2680:Religion
2651:Pakistan
2641:Malaysia
2579:Regional
2359:Captions
2333:Spelling
2219:Overview
2039:→ 2 CO
1313:identity
1291:uses an
1277:orbitals
1222:−R (not
1135:", and "
1004:WP:NCHEM
996:Shortcut
975:citation
847:Contents
842:Overview
799:Subpages
784:Hatnotes
700:Taxonomy
695:Medicine
621:Religion
588:Pakistan
583:Malaysia
516:Regional
258:Captions
228:Spelling
36:MOS:CHEM
2799:Related
2776:Snooker
2701:Science
2626:Ireland
2563:History
2483:Blazons
2287:Linking
2243:Content
2014:O(l) (Δ
1982:omitted
1885:Simple
1873:History
1722:WP:lede
1696:Chembox
1421:halogen
1293:en dash
1241:Symbols
1207:for CD
1168:toluene
1155:titles.
1133:caesium
1104:General
724:Snooker
646:Science
563:Ireland
496:History
411:Blazons
178:Linking
134:Content
2905:Search
2764:Sports
2738:Safety
2661:Poland
2611:Hawaii
2591:Canada
2498:Novels
2478:Comics
2400:Tables
2390:Layout
2383:Layout
2374:Images
2352:Images
1972:; see
1876:Safety
1758:Safety
1753:Teflon
1543:Safety
1413:phenyl
1397:methyl
1311:, and
1309:equals
1196:for CD
1176:lysine
1129:sulfur
1083:, and
947:Safety
713:Sports
673:Safety
598:Poland
548:Hawaii
528:Canada
426:Novels
406:Comics
303:Tables
293:Layout
286:Layout
273:Images
251:Images
2687:Islam
2636:Korea
2631:Japan
2616:India
2606:Egypt
2539:Music
2532:Music
2452:Legal
2445:Legal
2421:Lists
2414:Lists
2369:Icons
2043:+ 3 H
1970:: -->
1962:: -->
1946:: -->
1782:Scope
1706:, or
1630:From
1324:minus
1305:minus
1262:(CaCO
1260:Roman
1170:over
1162:over
1060:split
990:Scope
932:InChI
628:Islam
573:Korea
568:Japan
553:India
538:Egypt
460:Music
372:Legal
365:Legal
328:Lists
321:Lists
268:Icons
70:This
16:<
2876:Tips
2488:Film
2466:Arts
2233:Tips
1968:chem
1966:<
1958:<
1952:math
1950:<
1948:and
1944:chem
1942:<
1792:here
1585:say.
1582:NPOV
1557:and
1419:for
1415:and
1384:and
1326:}}C)
1275:and
1249:and
1237:).
1211:SOCD
1119:Per
852:Tips
416:Film
390:Arts
1933:Do
1729:STP
1656:).
1563:not
1386:SVG
1382:PNG
1352:⟨≡⟩
1348:⟨=⟩
1344:⟨−⟩
1338:C≡C
1269:tag
1228:−CH
1166:,
1034:not
2952::
1976:.
1960:ce
1798:.
1765:50
1763:LD
1702:,
1634::
1604:.
1555:H-
1409:Ph
1405:Pr
1403:,
1401:Et
1393:Me
1307:,
1232:−R
1174:,
1100:.
1079:,
2199:e
2192:t
2185:v
2137:]
2045:2
2041:2
2037:2
2033:5
2031:H
2029:2
2027:C
2019:H
2016:r
2012:2
2008:2
2004:2
2000:5
1998:H
1996:2
1994:C
1989:H
1986:r
1907:2
1903:2
1895:2
1891:2
1724:)
1708:y
1704:x
1700:n
1466:.
1417:X
1264:3
1234:2
1230:2
1226:1
1224:R
1220:2
1213:3
1209:3
1205:6
1202:d
1198:3
1194:4
1191:d
1146:"
1127:"
977:)
973:(
879:e
872:t
865:v
736:)
732:(
726:)
722:(
98:.
78:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.