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Cambridge AS & A Level Chemistry

ASAS Level subject content

AS Level subject content in Cambridge AS & A Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Syllabus section1,127 practice questions52 lessons

Overview

Topics 1-22: studied by all candidates; examined in Papers 1 and 2 and assumed knowledge for Paper 4.

In this topic

Lessons

  • Addition polymerisation

    40 min

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  • Alcohols: structure, properties and making ethanol

    45 min

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  • Reactions of alcohols

    55 min

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  • Aldehydes and ketones: preparation, reduction and tests

    50 min

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  • Nucleophilic addition to aldehydes and ketones

    45 min

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  • Alkanes, crude oil and combustion

    50 min

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  • Free-radical substitution of alkanes

    40 min

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  • Carboxylic acids: preparation and reactions

    45 min

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  • Dynamic equilibrium and Le Chatelier's principle

    40 min

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  • Equilibrium constants Kc and Kp

    50 min

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  • The Haber and Contact processes

    45 min

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  • Enthalpy changes and calorimetry

    40 min

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  • Organic formulae, functional groups and naming

    50 min

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  • Halogenoalkanes: preparation and reactions

    50 min

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  • Nucleophilic substitution: SN1 and SN2 mechanisms

    45 min

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  • Infrared spectroscopy

    40 min

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  • Nitrogen, ammonia and the ammonium ion

    40 min

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  • Oxides of nitrogen and sulfur in the environment

    40 min

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  • Organic synthesis with AS Level reactions

    50 min

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  • The nuclear atom, sub-atomic particles and isotopes

    30 min

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32 more lessons in this topic. Join to read every lesson, or see what Full access includes.

Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

AS Level subject content: sample question

1 mark

In the reaction HCOX3X−(aq)+HX2O(l)⇌HX2COX3(aq)+OHX−(aq)\ce{HCO3-(aq) + H2O(l) <=> H2CO3(aq) + OH-(aq)}, which species acts as a Brønsted-Lowry base in the forward direction?

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