Chemistry, 15.10.2020 09:01 gabrielaperezcz
You want to test how the mass of a reactant affects the speed of a reaction.
Which of the following is an example of a controlled experiment to test this?
A) The mass of all the reactants is kept the same, and the mixtures are allowed to react for different amounts of time
B)The mass of all reactants is varied, and the time it takes the reaction to finish is measured
C)The mass of one reactant at a time is varied, and the time it takes one reactant to finish is measured
D)The mass of one reactant and the temperature of the reaction mixture are increased until reaction is finished
Answers: 1
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You want to test how the mass of a reactant affects the speed of a reaction.
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