AQA · Chemistry · 8462
GCSE Chemistry: Reversible reactions
The rate and extent of chemical change · AQA GCSE Chemistry (8462), specification point 4.6.2.1. Cards are generated from the exam board's own specification for "Reversible reactions", and every card links back to the page it came from. Specification © AQA — used with attribution.
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What is a reversible reaction?
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A reaction in which the products can react to produce the original reactants.
A reaction whose products can react to re-form the original reactants is called a ? reaction.
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reversible
What symbol is used in an equation to show a reaction is reversible?
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The double half-arrow ⇌ (two arrows pointing in opposite directions), e.g. A + B ⇌ C + D.
In the equation A + B ⇌ C + D, what does the ⇌ symbol indicate?
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That the reaction is reversible: A and B form C and D, and C and D can react to re-form A and B.
In the reversible reaction A + B ⇌ C + D, what are the products of the reverse reaction?
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A and B — the reverse reaction turns C and D back into the original reactants.
How can the direction of a reversible reaction be changed?
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By changing the reaction conditions.
The direction of a reversible reaction can be changed by changing the ?.
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conditions
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