When a substance is heated, the molecules move faster.

True or false

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products

Calculate the mass of 0.750 mol of the following substance. na3po4.