Balancing chemical equations — KCSE Chemistry
KCSE Chemistry · 66 practice questions · 4 syllabus objectives
What You'll Learn
Key learning outcomes for this topic, aligned to the KNEC KCSE syllabus.
Apply the law of conservation of mass to balance chemical equations by inspection
Balance ionic equations including half-equations for redox reactions
Verify that a given equation is balanced and correct any errors
Balancing chemical equations
Sample Questions
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Identify the changes in oxidation states and balance the following equation: ___H₂O₂ + ___I⁻ → ___I₂ + ___H₂O (4 marks)
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Identify and balance the half-equations for the following redox reaction: Zn(s) + Cu²⁺(aq) → Zn²⁺(aq) + Cu(s) (4 marks)
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Identify the correct coefficients to balance the following redox reaction: ___MnO₄⁻(aq) + ___Fe²⁺(aq) → ___Mn²⁺(aq) + ___Fe³⁺(aq) (4 marks)
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Why Practise Balancing chemical equations?
KNEC Aligned
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