Which statement best describes how a B cell works

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.

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

If 90.0 grams of ethane reacted with excess chlorine, how many grams of dicarbon hexachloride would form