Explain the difference between temperature and heat also state what determines the direction of heat transfer

Heat flow is directed from the area of highest heat to the coolest region. The difference between temperature and heat is that Heat is the total energy of molecular motion in a substance while temperature is the average energy of the m.m. in a substance

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.