Chemistry, 02.10.2020 09:01 sassy11111515
How might a scientist compare theories by doing an experiment?
A. Make sure that the experiment is properly controlled.
B. Do an experiment which could only apply to one of the theories.
C. Check if the experiment gives the same results when it is repeated.
D. See which theory does a better job of explaining the results of the experiment.
Answers: 2
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Fred is studying a substance that is made out of only one element. this means that
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When a beta particle is emitted, the mass number of the nucleus a. decreases by one b. increases by one c. remains the same d. decreases by two
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How might a scientist compare theories by doing an experiment?
A. Make sure that the experiment is...
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