Across
- 4. breaking down hydrocarbons into smaller molecules
- 6. term for a resource that can run out
- 7. this element forms families of similar compounds easily
- 9. process which divides crude oil into useful fractions
- 10. how thick a liquid is
- 12. the second member of the alkane family
Down
- 1. how easily a hydrocarbon burns
- 2. physical process that turns a liquid into a vapour
- 3. more reactive than alkanes and react with bromine water
- 5. doing this to hydrocarbons releases lots of energy
- 8. substance made using alkenes as starting material made up of many repeating units
- 11. thick smelly mixture of hydrocarbons