The answer to your question is C. A solution is a homogeneous mixture composed of two or more substances, so it couldn't have been A and D. Since a solution can't have its substances separated by a chemical means because they are chemically bonded, thus they are able to be separated by physical means
Answer:
Mg(s)+Zn2+>>>>>Mg2++Zn(s) B
Explanation:
When the KClO3 decomposes, more oxygen is produced. I don't think I know any other possibility exists.<span />