According to Newton's Third Law, if a hammer puts a force of 200 N on a nail, how much force does the nail put back on the hammer? a. 200 N
b. -200 N
c. 50 N
d. 150 N

The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.