Answer:
4. Catalase is a common enzyme found in nearly all living organisms exposed to oxygen which catalyzes the decomposition of hydrogen peroxide to water and oxygen.
5. hydrogen peroxide
6. the reactant is hydrogen peroxide H2O2
7.the products are water and oxygen, H2O and O2
Explanation:
5. catalase breaks down two hydrogen peroxide molecules to form oxygen.
7. H2O2> H2O + O2 , catalase acts as a catalyst.
