Chemistry

2. A substance that reacts with a base to form a salt and water only. Any chemical substance that can donate protons or accept electrons.
4. A species formed by the chemical combination of two or more elements.
5. A substance that reacts with an acid to form a salt and water only. Any chemical substance that can accept protons or donate electrons.
8. A non-homogenous mixture formed by immiscible liquids.
9. The homogeneous mixture of a solute, which can be a solid or a liquid or a gas, dissolved in a solvent.
10. A solid substance that has been separated from a liquid in a chemical process
11. A substance used to cause a chemical reaction, especially in order to find out if another substance is present. Sometimes used as a synonym of reactant.

1. A combination of two or more substances that mix together without any chemical reaction taking place. An example is air which consists of nitrogen, oxygen, argon, carbon dioxide, etc. They do not have a fixed composition and can usually be easily separated.
3. A heterogeneous (or non-homogeneous) mixture formed by the combination of a solid (solute) and a liquid (solvent)
4. A substance that makes a chemical reaction happen faster without being changed itself.
6. A substance dissolved in another substance, usually the component of a solution present in the lesser amount.
7. A substance, especially a liquid, that can dissolve another substance, usually the component of a solution present in the largest amount.
10. A measure of the acidity of a solution: it equals -log[H3O+]