Chemistry: Hydrocarbon Cracking Processes

Hydrocarbons can be cracked to produce ______ molecules.

Cracking involves heating the hydrocarbons to ______ them.

Alkenes have the general formula ______.

The first 2 alkenes are ______ and propene.

Alkenes react with bromine water, turning it from orange to ______.

Some of the products made from cracking are useful as ______.

The fractions from crude oil can be processed to produce fuels and feedstock for the _________ industry.

Many of the fuels on which we depend for our modern lifestyle, such as petrol, diesel oil, kerosene, heavy fuel oil and liquefied petroleum gases, are produced from _________.

The shorter the molecules, the less ________ it is (more runny).

The longer the molecules, the more ________ it is.

The shorter the molecules, the lower the temperature at which that fraction is vaporised or condensed - and the lower its ________ point.

Hydrocarbons are burnt so that they can be used as fuel, since the reaction produces ________.

Crude oil is a finite resource found in ______

Crude oil is the remains of an ancient biomass consisting mainly of ______ that was buried in mud

Most of the compounds in crude oil consist of molecules made up of ______ and carbon only (hydrocarbons)

The first 4 alkanes are methane, ethane, propane and ______

Fractional distillation is a process used to separate the hydrocarbons in crude oil into ______

The fractionating column works continuously, heated crude oil is piped in at the ______