1.
What do we to protect our eyes from harmful substances?
2.
What word describes the number of particles of a substance within a set volume ?
3.
What word is the measure of how hot or cold something is?
4.
This is something that speeds up a chemical reaction without being used up itself.
5.
What happens to the rate of reaction when we decrease particle size, add a catalyst, increase the temperature or increase the concentration?
6.
What is the substance which dissolves in a liquid?
7.
What is a mixture which is formed when a solute dissolves in a solvent?
8.
What substance has a pH less than 7?
9.
What substance has a pH more than 7?
10.
What pH is a neutral susbtance?
