Reversible Reactions (AQA GCSE Chemistry): Flashcards

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Reversible Reactions
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Non-reversible reactions

Reactions that proceed in one direction only

Arrow symbol for non-reversible reactions

Single arrow (→)

Example: non-reversible reaction with vinegar

CH3COOH+NaHCO3→CH3COONa+H2O+CO2CH_3COOH + NaHCO_3 → CH_3COONa + H_2O + CO_2

Why is vinegar + NaHCO3NaHCO_3 non-reversible?

CO2CO_2 gas leaves, preventing backward reaction

Reversible reactions

Reactions proceeding in forward & backward directions

Key feature of reversible reactions

Products can react to regenerate reactants

Arrow symbol for reversible reactions

Double arrow (⇌)

Example: reversible reaction with H2H_2 and I2I_2

H2+I2⇌2HIH_2 + I_2 ⇌ 2HI

Explore AQA GCSE Chemistry Revision Notes by Topics

Rate of Reaction

Reversibility & Equilibrium

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Rate of Reaction

Reversibility & Equilibrium

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Rate of Reaction

Reversibility & Equilibrium

Explore AQA GCSE Chemistry Exam Questions by Topics

Rate of Reaction

Reversibility & Equilibrium

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