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CHEMISTRY HELP- 1. Which of the following best describes an example of pure chemistry? (1 point)testing the effects of lower concentrations of a drug on humans studying chemicals containing carbon developing a cure for osteoporosis finding an antidote for a new strain of virus 2. Which of the following can be observed only in a microscopic view? (1 point)foam insulation X-ray of a knee joint shape of a soybean plant structure of a muscle cell 3. The variable that is observed during an experiment is called what type of variable? (1 point)independent manipulated con

Chemistry
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1 studying carbon chemicals, here the variables are very limited and restrained. 2 muscle cell, typical in cancer cell evaluations, biopsies. 3 independent only if you can not modify it, which is most typical.
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