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ScotlandChemistry

Area 2: Nature's Chemistry

5 dot points across 5 inquiry questions. Click any dot point for a focused answer with worked past exam questions where available.

What makes a molecule an alcohol, and how are alcohols named and used?

Alcohols: the hydroxyl functional group, naming the straight-chain alcohols, their properties and their uses as solvents and fuels.
An SQA National 5 Chemistry answer on alcohols, covering the hydroxyl functional group, naming the straight-chain alcohols with the -ol ending, their properties such as solubility and flammability, and their uses as solvents and fuels.
10 min answer →

What makes a molecule a carboxylic acid, and how do these acids react?

Carboxylic acids: the carboxyl functional group, naming the straight-chain acids, their reactions with bases to form salts and water, and everyday examples such as vinegar.
An SQA National 5 Chemistry answer on carboxylic acids, covering the carboxyl functional group, naming the straight-chain acids with the -oic acid ending, their reactions with bases to form salts and water, and everyday examples such as ethanoic acid in vinegar.
10 min answer →

Where does the energy in fuels come from, and how do we measure it?

Energy from fuels: fossil fuels as finite resources, complete and incomplete combustion, exothermic reactions, and calculating the energy released using Eh equals cmDeltaT.
An SQA National 5 Chemistry answer on energy from fuels, covering fossil fuels as finite resources, complete and incomplete combustion, exothermic reactions, and calculating the energy released by a burning fuel using Eh equals cmDeltaT.
11 min answer →

How are families of carbon compounds named, and how do we tell saturated from unsaturated?

Homologous series: alkanes, cycloalkanes and alkenes, their general formulae and naming, saturated and unsaturated molecules, isomers, addition reactions and the bromine test for unsaturation.
An SQA National 5 Chemistry answer on the homologous series of alkanes, cycloalkanes and alkenes, covering general formulae, naming the first eight, saturated and unsaturated molecules, isomers, addition reactions and the bromine water test for unsaturation.
12 min answer →

How do the key areas of Nature's Chemistry build a picture of carbon compounds and fuels?

Overview of Area 2 Nature's Chemistry: how the homologous series, alcohols, carboxylic acids and energy from fuels connect through functional groups and combustion.
An SQA National 5 Chemistry overview of Area 2 Nature's Chemistry, linking the homologous series of alkanes, alkenes and cycloalkanes, alcohols, carboxylic acids and energy from fuels through functional groups, saturation and combustion.
9 min answer →