A student makes a model of a plant cell she viewed using a microscope. The scale is 1 um: 0.5 cm. The student
includes 6 mitochondria in the model.
How many mitochondria do the student see in the real celi?
OB.9
OD. 12

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.