How many coulombs would be required to electroplate 35.0 grams of chromium by passing an electrical current through a solution containing CrCl3

Rutherford's experiment indicated that matter was not as uniform as it appears what part of his experimental results implied this idea

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?