Cracking & Alkenes (Edexcel GCSE Chemistry Combined Science): Flashcards

Saturated hydrocarbons with only single covalent bonds

$C_nH_{2n+2}$

Unsaturated hydrocarbons with at least one C=C double bond

$C_nH_{2n}$

Process breaking long hydrocarbons into shorter, useful ones

Octane and ethene

High temperature and a catalyst

Steam and high temperature, no catalyst

Higher demand for shorter-chain hydrocarbons

More flammable and make better fuels for vehicles

No double bonds, only single covalent bonds

At least one double bond between carbon atoms