Types of reactions

2. A reaction that releases heat to the surroundings.
3. Decomposition reaction initiated by light energy.
4. A reaction in which a more reactive element displaces a less reactive element from its compound.
6. The process of losing oxygen or gaining hydrogen.
9. A reaction that absorbs heat from the surroundings.
10. A reaction that involves both oxidation and reduction simultaneously.
11. A reaction in which a substance reacts with oxygen to produce heat and light.

1. A reaction in which a single compound breaks down into two or more simpler substances.
2. Decomposition of a substance using electricity.
5. A type of double displacement reaction where an insoluble solid forms and settles from a solution.
7. The process of gaining oxygen or losing hydrogen.
8. A reaction where two compounds exchange ions to form two new compounds.