Reversible Reactions (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Quizzes

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Reversible Reactions
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What is a non-reversible reaction?

A reaction in one direction only

What symbol represents a non-reversible reaction?

Single arrow (→)

Why can't the vinegar and sodium hydrogen carbonate reaction reverse?

CO2CO_2 gas is produced and leaves

What is a reversible reaction?

A reaction in both directions

What symbol indicates a reversible reaction?

Double arrow (⇌)

In reversible reactions, what can the products do?

React to regenerate reactants

Which reaction is reversible?

H2+I22HIH_2 + I_2 ⇌ 2HI

What does the forward reaction H2+I22HIH_2 + I_2 → 2HI produce?

Hydrogen iodide (HIHI)

What does 2HIH2+I22HI → H_2 + I_2 represent?

The backward reaction

What prevents a backward reaction in non-reversible reactions?

A product leaving as gas

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