#1: which concentration of hydrochloric acid would most likely react with a zinc metal strip at the fastest rate? a. 10% b. 20% c. 30% d. 40% #2: which is usually associated with a faster reaction rate? a. using a crushed solid in the reactants b. putting a glass cover over the reactants c. removing heat energy from the reactants d. using a highly diluted solution of the reactants #3: hydrochloric acid reacts with zinc metal. which would increase the reaction rate the most? a. using whole zinc metal strips and a 10% hydrochloric acid solution b. using zinc metal strips that were cut in half and a 20% hydrochloric acid solution c. using zinc metal strips that were cut in fourths and a 10% hydrochloric acid solution d. using zinc metal strips that were cut in eighths and a 20% hydrochloric acid solution