CC10 Electrolytic processes personal learning checklist

GCSE Edexcel Combined Science · Chemistry Paper 1

Name ____________________ Class __________ Date __________

Tick one box per statement. Red: need help. Amber: partly confident. Green: can do independently.

I canRedAmberGreen
The electrolytic cell
Explain electrolysis, why electrolytes must be molten or dissolved, and why a DC supply is used.
Identify electrode polarities and explain cation and anion movement, distinguishing ions from electrons in wires.
Electrode reactions
Explain oxidation and reduction by electron transfer and identify their electrolysis electrodes.
Write electrode half-equations, balancing atoms, charges and electrons (Higher).
Predict products from molten binary ionic compounds, including lead bromide and sodium chloride.
Aqueous products
Predict aqueous cathode and anode products and explain differences from molten electrolytes.
Describe products from copper chloride, concentrated sodium chloride, sodium sulfate and acidified water.
Describe copper sulfate electrolysis with inert electrodes and explain the fading blue colour.
Identify electrolysis gases using appropriate tests and explain why bubbles alone cannot identify them.
Copper electrodes and practical evidence
Explain copper-electrode mass changes, stable solution colour and purification using an impure anode.
Plan and interpret electrode-mass investigations with controlled current, time and consistent drying.

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