What is the value for AG at 5000 K if AH = -220 kJ/mol and S= -0.05 kJ/(mol-K)? A. -195 kJ
B. -470. kJ
C. 30 kJ
D. 470 kJ

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.

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

The minerals found in bones are deposited by living cells called