Question

suppose you were teaching a science class to middle school students. because you want to show them an impressive chemical reaction, you decide to dissolve zinc in hydrochloric acid. you add more acid than usual and throw in pieces of zinc. what factor is not going to impact the reaction rate? the concentration of reactants the temperature of the solution amount of hydrochloric acid the surface area of the zinc

Answer 1

When dissolving zinc in hydrochloric acid, the reaction rate is not affected by the amount of hydrochloric acid once there's enough to react with all zinc. Concentration, temperature, and surface area are the key factors that impact reaction speed.

Step-by-step explanation:

The factor that is not going to impact the reaction rate when dissolving zinc in hydrochloric acid is the amount of hydrochloric acid used beyond a certain point. Once there is enough acid to react with all the zinc, adding more will not increase the reaction rate. The factors that affect the reaction rate include the concentration of reactants, temperature of the solution, and the surface area of the zinc. Increased concentration of hydrochloric acid, higher temperature, and larger surface area of zinc (smaller pieces) will all increase the reaction rate due to more frequent collisions and higher energy of the reacting molecules.