Carrie knows that chris has 286$ in her purse. if carrie gives chris 2 five dollar bills and 3 ten dollar bills, how much money will chris have?

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000

Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit.there is a precise compatibility between the active site and the lactose molecule.specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed.reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.

What happens when two nitrogen atoms share electrons