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The number of moles in 4.5 x 10^24 atoms of oxygen

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.

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis

How many molecules are found in 1.32 mol of nacl?