Q1. Define each of the following terms.

1. homogeneous mixture

2. heterogeneous mixture

3. element

4. compound

5. pure substance

6. solution

Q2. List at least six methods, and explain each, that can be used to separate

mixtures.

Q3. Read each of the following description s/questions and identify each as an

element, compound, heterogeneous mixture, or homogeneous mixture. Explain the

reason for each choice.

1. Air

2. A stainless steel fork

3. Molten iron

4. Trail mix

5. Distilled water

6. Salt water

Q4. Mixtures can occur between all phases of matter. Give an example for each of

the following mixtures:

1. Gas/gas

2. Gas/liquid

3. Liquid/liquid

4. Solid/liquid

5. Solid/solid/nWatch on

Q5. Is it correct that higher temperature always increases the solubility? If yes,

explain why? If no, explain why not and provide an example that shows a different

behavior.