14. Chemical reactions can occur when molecules collide. What happens when molecules collide but no chemical reaction takes place?
A. Atoms in the molecules are rearranged.
B The molecules change their shape.
C. The molecules bounce off each other.
D. The pressure in the container increases.

What does the process of natural selection involve

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

Is it safe to take 450mg of diphenhydramine hydrochloride?