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Edexcel A-Level Chemistry AS 8.10 Write Ionic Half Equations and Use Them to Construct Full Ionic Equations 8b the Elements of Groups 1 And 2 Students Will Questions

Practise Edexcel IAL Chemistry 8.10 by balancing ionic half-equations, combining oxidation and reduction steps, and checking atoms, charge and electrons against marked exam evidence.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • Balance acidic ionic half-equations using water, hydrogen ions and electrons.
  • Scale and combine oxidation and reduction half-equations so electrons cancel.
  • Write balanced overall ionic equations with correct species, coefficients and state symbols where required.

Edexcel A-Level Chemistry AS 8.10 Write Ionic Half Equations and Use Them to Construct Full Ionic Equations 8b the Elements of Groups 1 And 2 Students Will Questions question 1

[Maximum number: 2]

This is a question about alcohols.

Ethanol can be oxidised by acidified sodium dichromate(VI) to ethanal and then to ethanoic acid. The apparatus may be set up in two ways.

Figure for Question Edexcel A-Level Chemistry AS 8.10 Write Ionic Half Equations and Use Them to Construct Full Ionic Equations 8b the Elements of Groups 1 And 2 Students Will Questions question 1 — Edexcel A-Level Chemistry AS

Complete the ionic half-equation for the reduction of the dichromate(VI) ions to chromium(III) ions.
State symbols are not required.

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