32 lines
1.1 KiB
XML
32 lines
1.1 KiB
XML
<problem display_name="S2E2: Hydrogen Combustion">
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<text>
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<p>Gaseous hydrogen can be reacted with gaseous oxygen in the presence of a flame to produce water vapor according to the following reaction:</p>
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[mathjax] \text{ a } \text{H}_{2 } + \text{ b }\text{O}_{2 } = \text{ c }\text{H}_{2 }\text{O }[/mathjax]
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<p>Balance the equation i.e., specify the values of <i> a, b, </i> and <i>c</i>. Use the lowest whole number coefficients.</p>
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<p>a =</p>
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<numericalresponse answer="2">
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<responseparam type="tolerance" default="1%" name="tol" description="Numerical Tolerance" />
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<textline correct_answer="2" math="1" />
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</numericalresponse>
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<p>b =
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<numericalresponse answer="1">
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<responseparam type="tolerance" default="1%" name="tol" description="Numerical Tolerance" />
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<textline math="1" />
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</numericalresponse> </p>
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<p>c =
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<numericalresponse answer="2">
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<responseparam type="tolerance" default="1%" name="tol" description="Numerical Tolerance" />
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<textline math="1" />
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</numericalresponse> </p>
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</text>
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</problem>
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