Chemistry, 28.09.2021 21:50 hazeleyes2006
Question 13 of 32
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?
O A. The mass of one reactant at a time is varied, and the time it takes
the reaction to finish is measured.
O B. The mass of all the reactants is varied, and the time it takes the
reaction to finish is measured.
O C. The mass of all of the reactants is kept the same, and the
mixtures are allowed to react for different lengths of time.
D. The mass of one reactant and the temperature of the reaction
mixture are increased until the reaction is finished.
SUBMIT
Answers: 2
Chemistry, 21.06.2019 22:30
Naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 168 n, causing an acceleration of 2.8 m/s2, what is naoki's mass?
Answers: 1
Chemistry, 22.06.2019 12:10
Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.
Answers: 1
Question 13 of 32
You want to test how the mass of a reactant affects the speed of a reaction.
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