organic

Created by

Jazzy Mac

Cards (37)

where do we find crude oil
in rocks
crude oil is found in rocks
crude oil is a finite resource
how is crude oil formed
over millions of years from the remains of plankton
what tiny sea creatures form crude oil
plankton
crude oil is formed over millions of years from the remains of sea creatures called plankton
plankton are burried in
mud
crude oil is a mixture of ...
hydrocarbons
-------- is a mixture of molecules called hydrocarbons 
crude oil
crude oil is a mixture of molecules called hydrocarbons
hydrocarbons are made of hydrogen and carbon only
what are hydrocarbons made of
hydrogen and carbon ONLY
what is the general formula of alkanes 
C(n)H(2n+2)
alkanes are saturated molecules
In alkanes the carbon is fully bonded to the hydrogen
high viscosity - flow slowly
low viscosity - flow quickly
as the size of hydrocarbons increases the molecules get
more viscous
as the size of hydrocarbon increases it gets more viscous
short chain hydrocarbons are very flammable
the shorter the hydrocarbon the ---- flammable
more
long chain hydrocarbons have ---- boiling points
high
the longer the hydrocarbon chain the
more viscous
higher boiling point
less flammable
hydrocarbon fuels release energy when burned
what happens to the carbon and hydrogen atoms during combustion
they are oxidised
what are the products of complete combustion
carbon dioxide and water
what is needed for complete combustion
endless oxygen supply
how do we separate the hydrocarbons in crude oil
fractional distillation
alkanes only have single covalent bonds between carbon atoms
what is cracking 
breaking long chain alkanes into smaller molecules to make them more useful
what is used in catalytic cracking 
high temperature and a catalyst
what is needed in steam cracking
high temp and steam
what do alkenes have
double covalent bonds between carbon atoms
alkenes can make polymers
alkenes are more reactive than alkanes
what is the formula for alkenes
C(n)H(2n)
why are alkenes unsaturated
they have less hydrogen