lillianthebestf lillianthebestf 01-12-2017 Chemistry contestada Can someone help? 40 points for answering all of these 3 questions 1: The following is an example of which type of reaction? CH3OH + O2 → CO2 + 2H2O + heat combustion endothermic spontaneous substitution 2: __________ is the universal solvent because it can dissolve more things than any other substance. Hydrochloric acid Water Ammonia Hydrogen 3: If the number of atoms of each element in the products equals the number of atoms of each element in the reactants, the equation is __________. balanced not spontaneous spontaneous an acid-base reaction