Why does heat cause a substance to expand? i. heat causes the substance's atoms or molecules to move faster. ii. the substance gets larger because it converts heat to mass. iii. heat drives water into the spaces between atoms or molecules.

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1

The two required components for a generator are