CHEMISTRY CROSSWORD

3. The process by which a solid changes to a liquid.
6. A measure of the average kinetic energy of particles in a substance.
7. A subatomic particle with no charge, found in the nucleus of an atom.
10. A substance that produces OH- ions in solution
11. A pure substance consisting only of atoms that all have the same numbers of protons.
13. State of matter with a definite volume but no definite shape.
14. The amount of space that a substance or object occupies.
16. A subatomic particle with a positive charge, found in the nucleus of an atom.
17. A measure of mass per unit volume.
19. State of matter with no definite shape or volume.

1. The smallest unit of an element that retains the chemical identity of that element.
2. A homogeneous mixture of two or more substances.
4. Anything that has mass and takes up space.
5. A group of two or more atoms held together by chemical bonds.
8. A negatively charged subatomic particle that orbits the nucleus of an atom.
9. A pure substance made of two or more elements chemically combined in a fixed ratio.
10. The rapid vaporization of a liquid, occurring when a liquid is heated to its boiling point.
12. A substance containing two or more substances that are not chemically combined.
15. A measure of the amount of matter in an object.
18. State of matter with a definite shape and volume.