How much moles of C2H2 is in 104g of C2H2, Pls do whole thing not Just result.​

14 days is the half-life of phosphorus-32

i do not get it   at all

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?