A chemist is designing an experiment to investigate the effect of temperature on the rate of a piece copper oxidization. He records his data in his lab notebook. Which of the following answers contain the best (1) dependent,(2) independent, and (3) controlled variables that can exist in such an investigation?
a
(1) temperature, (2) rate of copper oxidization, and (3) the initial mass of the copper piece
b
(1) rate of copper oxidization, (2) temperature, and (3) the initial mass of the copper piece
c
(1) the initial mass of the copper piece, (2) rate of copper oxidization, and (3) temperature
d
(1) temperature (2) the initial mass of the copper piece (3) rate of copper oxidization
Answers: 1
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