How many grams of H2 will be produced from 81 g of H2O? Show work

answer; i do believe the correct answer is (river); /// good luck

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?

c. orbital shape i hope this is correct