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1.1 Formulae, equations and hazards

1.1 Formulae, equations and hazards

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Question 30

An ore of chromium contains chromium(III) oxide, Cr2O3\text{Cr}_2\text{O}_3Cr2​O3​. Chromium can be extracted from this oxide by heating it with carbon.

Balance the equation for this reaction.

2Cr2O3+………C→………Cr+………CO2 2\text{Cr}_2\text{O}_3 + \dots\dots\dots\text{C} \rightarrow \dots\dots\dots\text{Cr} + \dots\dots\dots\text{CO}_2 2Cr2​O3​+………C→………Cr+………CO2​
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1.1 Formulae, equations and hazards Questions

  1. GCSE
  2. /Chemistry
  3. /1.1 Formulae, equations and hazards

230 exam-style questions on Edexcel GCSE Chemistry 1.1 Formulae, equations and hazards, covering 1.1.1 Formulae, word and balanced equations, 1.1.2 Balanced ionic equations, and 1.1.3 Hazard symbols and risk in practical work. Each one has a worked solution and a mark scheme showing where the marks go.

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