Classify the following as either an element, a compound, or a mixture.

1. A solution of silver nitrate dissolved in water:
2. Chromium (Cr)
3. CO2 (carbon dioxide)
4. Oil and water
5. Aluminum Fluoride (AlF3)
6. Tin (Sn)

1. Compound (silver nitrate is a compound)

2. Element (chromium is an element)
3. Compound (carbon dioxide is a compound)
4. Mixture (oil and water is a mixture)
5. Compound (aluminum fluoride is a compound)
6. Element (tin is an element)