Chemistry Test Midterm Chemistry Test- please don't screw up 0.0 / 5 ? ChemistryCrude oil, cracking and hydrocarbonsGCSEAQA Created by: Forever annoyedCreated on: 01-02-15 12:59 What is crude oil? Crude oil is a mixture of different compounds which boil at different temps. 1 of 9 What can distillation be used for? Separating a mixture of liqquids 2 of 9 What is the name of the liquids produced by simple distillation Fractions 3 of 9 What are alkanes? Alkanes are saturated hydrocarbons 4 of 9 The formula to work out how many hydrogens in an alkane is...? the amount of carbons x2 +2, so 2n+2 5 of 9 How are crude oils separated at refineries? The are separated via fractional distillation 6 of 9 How does Fractional Distillation work? The boiling point of a hydrocarbon depends on the size of its molecule. 7 of 9 Complete this phrase: the larger the hydrocarbon molecule...? the higher the boiling point 8 of 9 How is crude oil actually separated? 1. Crude oil is vaporised and fed into fractionating column 9 of 9
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