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{{chem2}} er snið fyrir efnaformúlur og efnajöfnur.

Greinarmerki

[breyta frumkóða]
Tákn Gefur Dæmi Útkoma
\s{{chem2|CH3\sCH3}}CH3−CH3
\d={{chem2|CH2\dCH2}}CH2=CH2
\t{{chem2|HC\tCH}}HC≡CH
\q{{chem2|[Cl4Re\qReCl4](2−)}}[Cl4Re≣ReCl4]2−
\--{{chem2|A\-B}}A-B
\\\{{chem2|C\\D}}C\D
\hη{{chem2|\h}}η
\h{1}η1-{{chem2|\h{1} |}} η1-
\m{1}μ1-{{chem2|\m{1} |}}μ1-
->{{chem2|2H2 + O2 -> 2H2O}} 2H2 + O2 → 2H2O
<->{{chem2|K<->L}}K ⇌ L
*·{{chem2|CoCl2*6H2O}}CoCl2·6H2O
\**{{chem2|Cp\*2Fe}}Cp*2Fe
_{}subscript{{chem2|C_{''n''}H_{2''n''+2} }} CnH2n+2
^{}superscript{{chem2|^{13}CH4}}13CH4
&nabla;{{chem2|&nabla;}}
( )( ){{chem2|R\sCH(OH)CN}}R−CH(OH)CN