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Medical College Admission Test
Chemical and Physical Foundations of Biological Systems

Moles of Water Produced from Hydrogen and Oxygen

Very Easy General Chemistry Stoichiometry And Chemical Reactions

A scientist is conducting an experiment to understand the reaction between hydrogen gas (H2) and oxygen gas (O2). The balanced chemical equation for this reaction is:

2 H2 + O2 → 2 H2O

If the scientist starts with 4 moles of hydrogen gas, how many moles of water will be produced if there is an excess of oxygen?

Hint

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