Across
- 1. The rate of a chemical reaction increases at ______ temperatures
- 3. Materials made from chemical reactions
- 5. The law of _____ proportions says that the compounds in an equation have a fixed ratio
- 8. Chemical reactions happen in a ____ system
- 9. How long it takes for reactions to happen
- 10. The theory of how effective collisions happen
Down
- 2. The original materials in a reaction
- 4. How dense the reactants are. An increase in this increases reactions
- 6. For a reaction to happen the energy must be...
- 7. When there is the same number of atoms on both sides of an equation