Molecular Mysteries

2. It often appears cloudy or forms at the bottom of a solution.
5. What you do to ensure a chemical equation follows the law of conservation of mass.
9. A fundamental process in chemistry involving the transformation of substances.
13. It distinguishes between different atoms in a compound.
15. It often involves the addition of oxygen or the loss of hydrogen.
16. What happens when an acid and a base react to cancel each other's effects.
17. A chemical reaction that releases heat to its surroundings.

1. A chemical reaction involving the gain of electrons by a substance.
3. It shows the reactants and products of a chemical reaction.
4. A chemical reaction in which a compound breaks down into two or more simpler substances.
6. It's what happens when something burns.
7. It lowers the activation energy of a reaction.
8. Used to determine whether a solution is acidic, basic, or neutral.
9. The speed at which a reaction occurs, often expressed in moles per unit time.
10. A chemical reaction that absorbs heat from its surroundings.
11. These are what you start with in a chemical reaction.
12. Often involves the change in oxidation states of elements.
14. What you end up with after a chemical reaction.