When the equation, + 2h 6 → + is balanced, the coefficient of o2 is: when the equation, + 2h 6 + is balanced, the coefficient of o2 is:

According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go from solid to liquid? silver sulfur water lead

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains