Speech for Chemistry Notations
The following tables list several examples of different types of Chemical notation that can be represented with MathML and TeX. In the tables below, the notation is shown followed by the TeX mchem package’s notation for the input (for those who can’t read the 2D chemical notation).
The last column is the preferred speech for that notation.
Most of these examples are from the Wikipedia Chemical Formula page .
|
|
mchem TeX Input |
|
Empirical |
\[\ce{CH20}\] |
|
|
\[\ce{CH_2O}\] |
|
Molecular |
\[\ce{C6H12O6}\] |
|
|
\[\ce{C_6H_12O_6}\] |
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Structural |
\[\ce{CH3 CH2 CH2 CH2 CH2 CH3}\] |
|
|
\[\ce{CH_3CH_2CH_2CH_2CH_2CH_2CH_3}\] |
|
Condensed |
\[\ce{H2C=CH2}\] |
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|
\[\ce{H2C::CH2}\] |
|
|
\[\ce{HC#CH}\] |
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|
\[\ce{(CH_3)_3 CH}\] |
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|
|
|
Ions |
\[\ce{H3O+}\] |
|
|
\[\ce{SO4^2-}\] |
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|
\[\ce{[Co(NH3)6]^3+(Cl3)-}\] |
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Isotopes |
\[\ce{^{18}O{}^{16}O}\] |
|
|
\[\ce{[^{32}PO4]^3-}\] |
|
|
\[\ce{_8O2}\] |
|
Oxidation States |
\[\ce{Fe^{II}Fe^{III}2O4}\]
|
|
Unpaired Electrons/Radical Dots |
\[\ce{OCO^{.-}}\]
|
|
|
\[\ce{NO^{(2.)-}}\]
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|
Nuclides |
\[\ce{^{12}_6C}\] |
|
|
\[\ce{^{238}U}\] |
|
|
\[\ce{^{0}_{-1}n}\] |
|
|
\[\ce{^{0}_{-1}n^{-}}\]
|
|
Trapped Ion |
\[\ce{M@C60}\] ) @ signifies an atom, molecule or ion trapped within or on the surface of another compound. A verbose user would be unlikely to come across this. |
|
|
\[\ce{[As@Ni12As20]^3-}\] |
Most of these examples are from the Wikipedia Chemical Formula page .
|
|
mchem TeX Input |
|
Reactions |
\[\ce{2HCl + 2Na -> 2NaCl + H_2}\] |
|
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\[\ce{2HCl(aq) + 2Na(s) -> 2NaCl(aq) + H2(g)}\] |
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\[\ce{2HCl + 2Na -> 2 NaCl + H2 ^}\] |
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\[\ce{2CH3OH->[-H2O]CH3OCH3}\] |
|
Precipitation Reaction |
\[\ce{CaCl2 + 2AgNO3 -> Ca(NO3)2 + 2 AgCl(v)}\] |
|
|
\[\ce{Ag+ + Cl^- -> AgCl(v)}\] |
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Equilibrium |
\[\ce{2SO2 + O2 <=> 2 SO3}\] |
|
|
\[\ce{K_w = [H+][OH-]}\] |
|
Nuclear Decay |
\[\ce{^{14}_{6}C -> ^{14}_{7}N + ^0_-1e}\] |
|
Resonance |
\[\ce{S=C=N^{\ominus} <-> ^{\ominus}\!S-C{\equiv}N}\] |
|
\[\ce{[{F-XeF- <-> F-Xe-F}]}\] |
|
|
Annotations |
\[\ce{Hg^2+ ->[\ce{I-}]$\underset{\mathrm{red}}{\ce{HgI2}}$->C[I-]$\underset{\mathrm{red}}{\ce{[Hg^{II}I4]^2-}}$}\] |