CHEMISTRY REVIEW

5. Any substances to the right of the arrow in a chemical equation
8. A number placed in front of a formula that tells you how many molecules like the 3 in 3H20
9. A summary of a chemical reaction
10. A number in a formula written below the line which tells you the number of atoms
11. Space where electrons orbit around the nucleus
12. Term for a chemical equation having the same number of atoms on both sides
13. A term for outer shell electrons in an atom
15. A type of bond formed by atoms sharing a pair of electrons, as in water
16. The number of electrons in the outer shell which makes the atom stable
17. Any substances to the left of the arrow in a chemical equation

1. A type of bond formed by atoms borrowing or lending electrons as in NaCl or salt
2. States that matter cannot be created nor destroyed
3. A group of atoms which acts like a single particle
4. When a new substance is created
6. The substance, usually water, in a solution that does the dissolving
7. Any combination of substances in which no reaction takes place
14. The substance(s) in a solution being dissolved, like salt in water