CHEMISTRY

1. The gas that can be tested with a lit splint.
4. metal + acid ---> _____ + hydrogen
6. The gas in the fire triangle.
9. In a reaction of thermal ________, one reactant is broken down into two or more products by heat.
12. The formula for a metal hydroxide.
13. Subatomic particles that are found on the shells of an atom.
14. A reaction that releases heat into the surroundings.

2. Method that is used to extract metals that are more reactive then carbon.
3. A reaction that occurs when a more reactive metal takes the place of a less reactive metal in a compound.
5. An example of this is methane.
7. A reaction where heat from the surroundings is taken in.
8. Subatomic particles that you find in the nucleus with the neutrons.
10. A metal that dosen't burn or react with water and acid, but gets covered by a oxide layer.
11. Protons or electrons = atomic ______