Across
- 4. containing only one element or compound
- 5. a mixture that has a purpose
- 8. method used to separate crude oil
Down
- 1. a method of separating different inks
- 2. name of an alkane that contains three carbons
- 3. Made from ancient biomass and plankton
- 6. Has only single C to C bonds
- 7. Has a double C to C bond