Fichas
Unit 1 Revision
Fichas del conjunto (8)
- 1what does the boiling point and viscosity of a hydrocarbon depend on?the number of carbon atoms it contains
- 2what happens to the boiling point and viscocity when the number of hydrocarbons increase?they both increase
- 3what does the furnace do in relation to crude oil?heats up the crude oil and turns it into gas
- 4what hydrocarbons are found in refinery gas?ethane, propane and butane
- 5how is limestone formed in animals?CO2 dissolves in water, used by animals to make shells, dead animals leave shells, shells converted to CaCO3 over a long time period
- 6what belief does the red shift support?supports the belief that stars and galaxies are moving further away from the earth and that the universe is expanding
- 7how does energy enter the food chain?it enters as light when plants photosynthesise
- 8how does energy leave the food chain?energy is lost as heat - in respiration, chemical energy, waste