My dog made become frightened and cover when he hears loud thunder this is an example of a reaction to what kind of stimuli a. chemicalsb. lightc. touchd. sound

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.

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.