Unit 14 - Hydrocarbons Flashcards
General formula for an alkane
CₙH₂ₙ+₂
Define saturated hydrocarbon
Compound of hydrogen and carbon that only contains single bonds
Write the symbol equation for what happens in a catalytic converter
2CO + 2NO₂ → 2CO₂ + N₂
Name the 3 steps in the free radical substitution of alkanes
Initiation, propagation, termination
Write equations to show the free radical substitution of propane with chlorine
Refer to key points sheet for diagram
General formula for an alkene
CₙH₂ₙ
Define unsaturated hydrocarbon
Compound of hydrogen and carbon that contains atleast one double carbon-carbon bond
Describe what happens in cracking
The breaking of a long chain alkane to make a smaller alkane and alkene
Describe hydrogenation
The addition of hydrogen to alkenes
Draw the mechanism for the reaction between ethene and bromine
Refer to key points sheet for diagram
What is the name of the mechanism by which ethene reacts with bromine?
Electrophilic addition
Define a monomer
Small molecules that react together to make long chain molecules (polymers)
Define a polymer
A long chain molecule made up of many repeating units derived from monomers
Write an equation to show the addition polymer formed from propene
Refer to key points sheet for diagram
What is a repeat unit?
The smallest group of atoms that when linked successively make up the whole polymer chain
