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<b>Chemical equation.</b>
(name: <span class="tt wims_code_words">chemeq</span>)<br>
This is a text input to be compared with a given chemical equation,
the syntax is
defined by the parser
<i
>chemeq
</i
>. The reply is
defined as a model (equilibrated) chemical equation, optionnaly followed by a
semi-colon and the (possibly) non-equilibrated chemical equation to be
given as an input.
<p>
The reply is considered as correct if the stoechiometric numbers are
proportional to the model
. the order of the compounds in
each member
does not matter, and the syntax allows many variants, including fractionary
coefficients.
example:
<ul>
<li><b>2H2 + O2 -> 2H2O; H2 + O2 -> H2O</b> the model is the equation of
synthesis of water, and a non-equilibrated template is given.
</li>
</ul>