Multiple Choice
Given the following data table for the reaction: 2 H2 + O2 → 2 H2O, if you start with 4.0 mol of H2 and 2.0 mol of O2, how many moles of H2O will be produced?
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3. Chemical Reactions
Stoichiometry
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For the balanced combustion reaction , which option gives the correct mole ratio between propane and oxygen?
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Verified step by step guidance1
Identify the balanced chemical equation for the combustion of propane: \(\mathrm{C_3H_8 + 5\,O_2 \rightarrow 3\,CO_2 + 4\,H_2O}\).
Focus on the coefficients in front of propane (\(\mathrm{C_3H_8}\)) and oxygen (\(\mathrm{O_2}\)) in the balanced equation, as these represent the mole ratios of the reactants.
Write the mole ratio of propane to oxygen using their coefficients from the balanced equation: \(\frac{1\,\mathrm{mol\,C_3H_8}}{5\,\mathrm{mol\,O_2}}\).
Compare this ratio to the options given to determine which one matches the correct mole ratio derived from the balanced equation.
Remember that the mole ratio is always expressed as the ratio of the coefficients from the balanced chemical equation, reflecting the stoichiometric relationship between reactants.
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