Use the formula a=h/n to find the batting average a of a batter who has h hits in n times at bat. solve the formula for h. if a batter has a batting average of .290 and has at bat 300 times, how many hits does the batter have?

Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.

Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.

Use vsepr theory to predict the molecular geometry of the molecule hcn.