PLEASE ANSWER

These two blocks have the same mass. Which block would have more kinetic energy when it reaches the ground and why?

A. Block B would have more kinetic energy since it is traveling faster. than block A

B. Block B would have more kinetic energy since it is closer to the ground. and doesn't have as much potential energy.

C. Block A would have more kinetic energy since it is higher and has more potential energy to transform into kinetic energy.

D. Block A would have more kinetic energy since it has more mass than block B.

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?