Even in an exothermic reaction, is needed to get the reaction started. select one: a. an endothermic reaction b. an inhibitor c. activation energy d. a catalyst

As you move from right to left on the periodic table the atomic radius fill in the blank

Why does a cake rise when you bake it? ♡

Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.