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Wed Jan 4 20:09:17 2017 UTC (7 years, 11 months ago) by damieng
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CVS tags: version_2_12_X, version_2_11_X, version_2_11_5_msu, version_2_11_5, version_2_11_4_uiuc, version_2_11_4_msu, version_2_11_4, HEAD
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<html> <head>
<title>Chemical Reaction Syntax Help</title>
</head>

<body>
<h1>Chemical Reaction Syntax</h1>
<h3>Description</h3>
<ul>
<li>Reactants are separated from products by '->'.</li>
<li>Individual reactants and products are separated by '&nbsp;&nbsp;+' (leading space is obligatory).</li>
<li>Numbers preceding the first symbol of a chemical specie are considered to be stoichiometric coefficients.</li>
<li>Numbers appearing after the first symbol of a chemical specie are considered to be subscripts.</li>
<li>Superscripts are initialized by '^' and terminated by a space.</li>
<li>Ionic charges are superscripts composed of a number followed by a sign (i.e. '^2+').</li>
</ul>

<h3>Examples</h3>
<ul>
<li>Ca(NO<sub>3</sub>)<sub>2</sub> is written as:<br>&nbsp;&nbsp;&nbsp;
<tt>Ca(NO3)2</tt></li>
<li>OH<sup>-</sup> + H<sub>3</sub>O<sup>+</sup> &rarr; 2H<sub>2</sub>O is written as:<br>&nbsp;&nbsp;&nbsp;
<tt>OH^- + H3O^+ -> 2H2O</tt></li>
<li>[Co(H<sub>2</sub>O)<sub>6</sub>]<sup>2+</sup> + 4Cl<sup>-</sup>  &rarr; [CoCl<sub>4</sub>]<sup>2-</sup> + 6H<sub>2</sub>O is written as:<br>&nbsp;&nbsp;&nbsp;
<tt>[Co(H2O)6]^2+ + 4Cl^- -> [CoCl4]^2- + 6H2O</tt></li>
<li><sup>3</sup><sub>1</sub>H + <sup>2</sup><sub>1</sub>H  &rarr; <sup>4</sup><sub>2</sub>He + <sup>1</sup><sub>0</sub>n is written as:<br>&nbsp;&nbsp;&nbsp;
<tt>^3 1H + ^2 1H -> ^4 2He + ^1 0n</tt></li>
</ul>
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