Unit 2: Nature's Chemistry

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

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Front (Question)

Homologous Series

Back (Answer)

Series of molecules with similar chemical properties and which share the same general formula

Front (Question)

Alkanes

Back (Answer)

Names all end in -ane General Formula is CnH2n+2

Front (Question)

Alkenes

Back (Answer)

Names all end in -ene All contain a carbon to carbon double bond (Unsaturated) Have the general formula CnH2n

Front (Question)

Unsaturated Hydrocarbons

Back (Answer)

Decolourise bromine water quickly

Front (Question)

Cycloalkanes

Back (Answer)

Begin with cyclo- and end with -ane Have the general formula CnH2n

Front (Question)

Combustion Reactions

Back (Answer)

Hydrocarbon + Oxygen → Carbon Dioxide + Water

Front (Question)

Addition Reactions

Back (Answer)

Double bond of alkene partially breaks, joining to the reactant molecule

Front (Question)

Hydrogenation

Back (Answer)

Addition of hydrogen to an alkene, turning it into an alkane

Front (Question)

Hydration

Back (Answer)

Addition of water to an alkene

#10

Front (Question)

Isomers

Back (Answer)

Compounds with the same molecular formulae but different structural formulae

#11

Front (Question)

Exothermic Reaction

Back (Answer)

Releases Heat Energy

#12

Front (Question)

Endothermic Reaction

Back (Answer)

Take in Heat Energy

#13

Front (Question)

Alkanols - Functional Group

Back (Answer)

Hydroxyl (OH)

#14

Front (Question)

Alkanols - General Formula

Back (Answer)

CnH2n+1OH

#15

Front (Question)

Alkanols - Naming

Back (Answer)

Ends in -anol Number of carbon with hydroxyl group attached is lowest (butan-1-ol)

#16

Front (Question)

Alkanols - Properties

Back (Answer)

Highly Flammable Boiling points increase with size of molecule as inter-molecular forces increase

#17

Front (Question)

Alkanols - Reactions

Back (Answer)

Combustion: Alkanol + Oxygen → Carbon Dioxide + Water Condensation with carboxylic acids to make esters

#18

Front (Question)

Alkanols - Uses

Back (Answer)

Alcoholic Drinks (Ethanol) Fuels (All Alcohols) - Methanol + Ethanol very clean burning Solvents Making Esters

#19

Front (Question)

Carboxylic Acids - Functional Group

Back (Answer)

Carboxyl -COOH

#20

Front (Question)

Carboxylic Acids - Naming

Back (Answer)

• oic acid eg. ethanoic acid (vinegar) • *Carbon within carboxylate always number 1*

#21

Front (Question)

Carboxylic Acids - General Formula

Back (Answer)

CnH2n+1COOH

#22

Front (Question)

Carboxylic Acids - Properties

Back (Answer)

Boiling point increases with size due to increasing intermolecular forces

#23

Front (Question)

Carboxylic Acids - Reactions

Back (Answer)

Same as all Acids Metal + Acid → Salt + Hydrogen Base + Acid → Water + Salt Carbonate + Acid → Salt + Carbon Dioxide + Water Ethanoic Acid → Ethanoate (CH3COO-) Condensation Reaction with alcohols to make esters

#24

Front (Question)

Carboxylic Acids - Uses

Back (Answer)

Cleaning Products (Limescale Remover) Preservative