CALCULATE THE LITERS OF PHOSPHINE (PH3) FORMED WHEN 0.45 LITERS OF HYDROGEN REACTS WITH PHOSPHORUS. Py+ 6H2 4PH 3 0.3
0.6
0.9
1.8​

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 grams of aluminum will there be in 98g of al2o3?

What substance has a mass of 9.5g and volume of 2.1cm^3