version 1.2, 2009/07/06 17:12:47
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version 1.3, 2009/07/07 23:38:39
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<problem> |
<problem> |
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<script type="loncapa/perl"> |
<script type="loncapa/perl"> |
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# you could randomize here |
$formula = "C2H5OH"; |
$formula = "C2H5OH"; |
$name = "ethanol"; |
$name = "ethanol"; |
$answer = "C2H5OH + 3O2 -> 2CO2 + 3H2O"; |
$answer = "C2H5OH + 3O2 -> 2CO2 + 3H2O"; |
Line 14 Write a balanced reaction for the comple
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Line 15 Write a balanced reaction for the comple
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<reactionresponse answer="$answer" initial="$formula ->"> |
<reactionresponse answer="$answer" initial="$formula ->"> |
<textline readonly="yes" /> |
<textline readonly="yes" /> |
<hintgroup showoncorrect="no"> |
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<stringhint answer="/\(g\)/" name="state" type="re" /> |
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<hintpart on="state"> |
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<startouttext />Do not include symbols for state of matter in your answer.<endouttext /> |
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</hintpart> |
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</hintgroup> |
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</reactionresponse> |
</reactionresponse> |
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</problem> |
</problem> |