Can someone ? 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