One XML Document and Many Results
(recombination)
<section id="F8493842" lastupdate="2001-05-22">
<title>Compounds</title>
<para>
A <keyterm>compound</keyterm> is a
substance containing at least two elements combined
chemically in definite proportions by mass. A compound
can be chemically broken up into its constituent elements
or simpler compounds. There are two types of compounds,
<term>ionic</term> and <term>molecular</term>.
<question-and-answer>
Testbank <testgroup>GDW</testgroup>
<question-group>
<question>6</question><question>7</question>
<question>9</question><question>54</question>
</question-group>
</question-and-answer>
</para>
<para>An <keyterm>ion</keyterm>
(<pronunc>eye-on</pronunc>) is an atom or group of
atoms that is positively or negatively charged. A
negatively charged ion is an <keyterm>anion</keyterm>
(pronounced <pronunc>an-eye-on</pronunc>) while a
positively charged ion is a <keyterm>cation</keyterm>
(pronounced <pronunc>cat-eye-on</pronunc>). An
<keyterm>ionic compound</keyterm> is a compound that
is held together by the attractive forces between
positively and negatively charged ions.
<question-and-answer>
Testbank <testgroup>GDW</testgroup>
<question-group><question>6</question>
<question>7</question> ionic compounds</question-group>,
<question-group><question>9</question> cations<question-group>.
<question-group><question>25</question>
<question>26</question> anions<question-group>
</question-and-answer>
</para>
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