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Questions and Answers
Which of the following best defines the rate of a chemical reaction?
Which of the following best defines the rate of a chemical reaction?
- The total amount of reactant consumed
- The change in concentration of a product per unit of time (correct)
- The total amount of product formed
- The change in concentration of a reactant per unit of time
Which of the following statements about reaction rates is true?
Which of the following statements about reaction rates is true?
- Reaction rates are only affected by temperature
- Reaction rates can vary greatly (correct)
- Reaction rates are always constant
- All chemical reactions have the same rate
What is the average rate of the reaction H2O2(aq) → H2O(l) + ½ O2(g) at 300 seconds?
What is the average rate of the reaction H2O2(aq) → H2O(l) + ½ O2(g) at 300 seconds?
- 0.298 M/s (correct)
- 0.458 M/s
- 0.697 M/s
- 0.566 M/s
What is the accumulated mass of O2 at 180 seconds?
What is the accumulated mass of O2 at 180 seconds?
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What is the concentration of H2O2 at 600 seconds?
What is the concentration of H2O2 at 600 seconds?
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