topic 5 0.0 / 5 ? ChemistryCrude oil, cracking and hydrocarbonsGCSEEdexcel Created by: 11harrisdCreated on: 04-11-14 15:05 What is cracking? Cracking is a chemical process that allows large hydrocarbon molecules to be broken down into smaller, more useful hydrocarbon molecules. 1 of 6 What are hydrocarbons? Hydrocarbons are groups of compound made up of hydrogen and carbon. 2 of 6 what are polymers? polymers are large molecules formed from smaller molecules also known as polymers. 3 of 6 What are alkanes? Alkanes are any of the series of saturated hydrocarbons including methane, ethane, propane, and higher members. 4 of 6 What are alkenes? Alkenes are any of the series of unsaturated hydrocarbons containing a double bond, including ethylene and propene. 5 of 6 what is the general formula for hydrocarbons? CnH2n 6 of 6
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