Chemistry

10th -

12thgrade

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Stoichiometry

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13 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
    If a chemist calculates the maximum amount of product that could be obtained in a chemical reaction, he or she is calculating the
    theoretical yield
    mole ratio
    actual yield
    percentage yield
  • 2. Multiple Choice
    1 minute
    1 pt
    2 KClO3 → 2 KCl + 3 O2
    How many moles of oxygen are produced when 6.7 moles of KClO3 decompose completely?
    6.7 mol
    1.0 mol
    10.1 mol
    4.5 mol
  • 3. Multiple Choice
    1 minute
    1 pt
    2Na + 2H2O → 2NaOH+ H2
    How many grams of hydrogen are produced if 120 g of Na are available?
    5.2 g
    2.6 g
    690 g
    45 g
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