Chemical changes
Reactions of metals - AQA
The reactivity series shows metals in order of reactivity. The reactivity of a metal is related to its tendency to form positive ions. Iron and aluminium are extracted from their ores in various ways.

QUIZ: Reactions of metals
This interactive quiz is for GCSE Chemistry (single science) students studying the reactions of metals. Test your knowledge of the reactivity series and the extraction of metals.

Acids, alkalis and salts - AQA
Indicators are used to determine whether a solution is acidic or alkaline. Acids react with metals, bases and carbonates to produce salts. Neutralisation is the reaction between an acid and a base.

QUIZ: Acids, alkalis and salts (1)
This interactive quiz is for GCSE Chemistry (single science) students studying acids, alkalis and salts. Test your knowledge on neutralisation, reactions with acids and solutions.

QUIZ: Acids, alkalis and salts (2)
This interactive quiz is for GCSE Chemistry (single science) students studying acids, alkalis and salts. Test your knowledge of indicators, reactions and chemical equations.

Titrations - AQA
The volumes of acids and alkali solutions that react with each other can be measured by titration using a suitable indicator.

QUIZ: Titrations
This interactive quiz is for GCSE Chemistry (single science) students studying titrations. Test your knowledge of titration calculations and making salts from acids and alkalis.

Electrolysis - AQA
Electrolysis involves using electricity to break down electrolytes to form elements. The products of electrolysis can be predicted for a given electrolyte.

QUIZ: Electrolysis
This interactive quiz is for GCSE Chemistry (single science) students studying Electrolysis. Electrolysis involves using electricity to break down electrolytes to form elements.

Sample exam questions - chemical changes - AQA
Understanding how to approach exam questions helps to boost exam performance. Question types will include multiple choice, structured, mathematical and practical questions.

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