Physical and Chemical

3. a characteristic of a particular substance that can be observed in a chemical reaction.
6. to separate and retain the coarse parts of (flour, ashes, etc.) with a sieve
9. the temperature at which a given solid will melt.
11. a chemical substance, usually a liquid, which contains hydrogen and can react with other substances to form salts.
15. the process that changes liquid water to gaseous water (water vapor).
16. a process that occurs when two or more molecules interact to form a new product

1. a characteristic of a substance that can be observed or measured without changing the identity of the substance.
2. the attraction between the particles of the solvent and solute are strong enough to overcome the attraction of the particles of the solute for one another.
4. a type of phase change that takes place when a solid turns directly into a gas, skipping the liquid phase
5. a solid formed by a change in a solution, often due to a chemical reaction or change in temperature that decreases solubility of a solid.
7. 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.
8. the temperature at which it starts to change into steam or vapor
10. a substances that, when dissolved in water, have a pH level greater than seven, taste bitter, and feel slippery.
12. The conversion of matter from one state to another
13. the quantity of something per unit volume, unit area, or unit length
14. a homogeneous mixture of one or more solutes dissolved in a solvent