Chemistry

4. a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products
8. made when two or more substances are combined, but they are not combined chemically
9. the basic unit of a chemical element
10. a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
11. a mixture in which the composition is not uniform throughout the mixture
13. process involving the conversion of a liquid into vapour that is subsequently condensed back to liquid form
14. a homogeneous mixture of one or more solutes dissolved in a solvent.
15. Is the scientific study of the structure of substances and of the way that they react with other substances
16. a negatively charged subatomic particle

1. the process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles
2. any atom or group of atoms that bears one or more positive or negative electrical charges
3. physical substance in general
5. a substance that results from a combination of two or more different chemical elements
6. a mixture in which the composition is uniform throughout the mixture
7. neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen
12. the process by which a liquid turns into a gas