Question

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

Answer 1

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.

Answer 2

Thank u