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11 Cards in this Set
- Front
- Back
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What type of bond is in alkenes and alkanes |
Alkenes: At least 1 double covalent bond between carbon atoms Alkanes: Only single covalent bonds between carbon to carbon atoms |
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What is the maximum bonds each carbon atom can have and how many bonds does a double bond count as |
Carbon atoms: 4 bonds max Double bond: 2 |
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What is the general formula for alkenes and how describe how we can calculate the number of hydrogen atoms with this formula |
CnH2n If we know the number of carbon atoms we can calculate the number of hydrogen atoms by multiplying it by 2 |
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Where can the position for the double bond be in alkenes for GCSE |
Anywhere in the structure |
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What 2 things can alkenes be used to produce |
- Polymers - Starting materials for production of other chemicals |
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What are the products of cracking and what are the products grouped as |
Alkanes and alkenes Hydrocarbons |
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Which is more reactive alkenes or alkanes |
Alkenes |
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Why are alkenes unsaturated and what does it mean for alkenes to be unsaturated |
- This is because Alkenes have the same number of carbon atoms but 2 fewer hydrogen atoms than alkanes Alkenes have double bonds with mean they are unsaturated |
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State - the first 4 members of all 4 homologous series - the number of carbon atoms - the functional group |
Alkanes: - C-C (Not official) Methane: 1 Ethane: 2 Propane: 3 Butane: 4
Alkenes: - C=C Ethene: 2 Propene: 3 Butene:4 Pentene: 5
Alcohols: - OH Methanol: 1 Ethanol: 2 Propanol: 3 Butanol: 4
Carboxylic acid: - COOH Methanoic acid: 1 Ethanoic acid: 2 Propanoic acid: Butanoic acid: 4 |
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Why are alkanes saturated |
- Because they have 2 more hydrogen atoms than alkenes but the same number of carbon atoms - Because they have single bonds |
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State the molecular formula and draw the displayed formula for all 4 alkenes |
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