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This quiz contains 5 questions from a mix of 1 subtopics.
What is the purpose of the bung and delivery tube in Method 1?
to measure the volume of hydrogen gas
to collect the hydrogen gas
to measure the temperature of the reaction
to prevent the escape of hydrogen gas
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What is the purpose of the black paper cross in Method 2?
to collect the sodium thiosulfate
to measure the temperature of the reaction
to measure the volume of sodium thiosulfate
to provide a reference point for visibility
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What is the dependent variable in the investigation?
temperature of the reaction
rate of reaction
concentration of the hydrochloric acid
volume of hydrogen gas produced
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What is the independent variable in the investigation?
rate of reaction
temperature of the reaction
concentration of the hydrochloric acid
volume of hydrogen gas produced
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What is the control variable in the investigation?
volume of hydrogen gas produced
temperature of the reaction
concentration of the hydrochloric acid
rate of reaction
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