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Half equations: electrolysis

The starter and exit quiz of the lesson “Half equations: electrolysis”, from the unit “Electrolysis” (Year 11 Science) by Oak National Academy.

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Oak National Academy

12 questions

What is a chemical reaction?
What are reactants?
What are products?
What is a word equation?
What does the conservation of mass mean?
What is a chemical symbol?
What does a half-equation describe?
What do half-equations show?
When an atom gains electrons we say it has been ...
In an electrolysis cell, where does oxidation occur? why?
What are spectator ions?
In the electrolysis of molten zinc chloride, the ionic equation is Zn²⁺(l) + 2Cl⁻(l) → Zn(s) + Cl₂(g). Which of the following is correct?

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