C7 Flashcards
(17 cards)
What is crude oil
A non renewable resource that is a large mixture of compounds, mainly hydrocarbons
What is cruise oil made from
The compressed remains of sea creature that died millions of years ago and were buried under the sea
How are alkanes different from alkenes
Alkanes are saturated, they only have one carbon-carbon bond
How many bonds can carbon make
4
How do you separate crude oil
Fractional distillation
What is bitumen used for
To create asphalt that is used to make roads
What is kerosene used for
To fuel planes
What is LPG used for
For gas stoves
What does viscosity mean
How thick/sticky something is
High viscosity- very thick and sticky
Low viscosity- very runny
What is volatility
How easy a liquid turns into a gas
Low volatility does not evaporate easily
High volatility evaporates very easily
What are four properties of short chain carbon molecules in hydrocarbons
Low viscosity
High volatility
Flammable
Low boiling point
Long chain carbon molecules are the opposite of
I hat a hydrocarbon burns what do they always produce
Carbon dioxide and water
Formula for burning hydrocarbon
Hydrocarbon+oxygen= CO2+ water
Test for carbon dioxide
Lime water- turns cloudy /milky
Formula for incomplete combustion of hydrocarbons
Hydrocarbon+oxygen= CO+water
CO= carbon monoxide
Why is carbon monoxide toxic
It binds to haemoglobin and replaces the oxygen in your body
