Across
- 3. A substance that slows down a chemical reation.
- 4. A substance formed as a result of a chemical change; substance to the right of a yield sign in an equation.
- 5. Insoluble substnace that crystallizes out of a solution.
- 6. The sum of the average atomic masses of the atoms in a molecule.
- 7. A chemical change in which a substance breaks down or decomposes into other substances.
- 8. The number places in front of a symbol or formula; used in balancing chemical equations.
- 10. Energy is released or given off.
- 13. Sum of the average atomic mass of the atoms or ion present in the formula of a compound.
- 14. Energy is taken in or absorbed.
- 16. The positive part of one compound unites with the negative part of another compound.
Down
- 1. A chemical change in which two or more elements or compounds unite to form a compound.
- 2. One element displaces another from a compound.
- 9. A shorthand description of a chemical reaction; tells the reactants and products and their ratios.
- 11. An inhibitor; slows down decay by retarding the processes that cause decay.
- 12. A substance that undergoes a chemical changel substance to the left of a yield sign in an equation.
- 15. A substance that increases the rate of a chemical reaction without being permanently changed itself.