Chemistry, 23.12.2019 02:31 nano792001

the rule for controls is that
a. controls are only necessary if you're not doing an experiment
b. everything should remain the same between experimental groups
c. there should be only one independent variable and one dependent variable
d. the only change we make between experimental groups is to the independent variable

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the rule for controls is that
a. controls are only necessary if you're not doing an experimen...

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