A3.25-g sample of sodium hydrogen carbonate reacts completely with sulfuric acid in a time of 20 s. express the average rate of reaction as b. mass of h2so4 consumed per second c. amount of h2so4 consumed per second d. amount of co2 produced per second

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.