The gradual wearing down of a geological formation due to physical or chemical changes to the surface of rocksA. A. DepositionDepositionB. B. WeatheringWeatheringC. C. ErosionErosionD. D. AbioticAbiotic

Both 1,2−dihydronaphthalene and 1,4−dihydronaphthalene may be selectively hydrogenated to 1,2,3,4−tetrahydronaphthalene. one of these isomers has a heat of hydrogenation of 101 kj/mol (24.1 kcal/mol), and the heat of hydrogenation of the other is 113 kj/mol (27.1 kcal/mol). match the heat of hydrogenation with the appropriate dihydronaphthalene.

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar