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3.1 Introducing chemical reactions

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Question 37

Aluminium reacts with chlorine gas to form aluminium chloride. Aluminium chloride is an ionic compound made of Al3+\text{Al}^{3+}Al3+ ions and Cl−\text{Cl}^{-}Cl− ions.

A sample contains 0.30 mol of aluminium.

Write a balanced symbol equation for the reaction.

Use your equation to calculate the amount, in mol, of chlorine gas needed to react completely with the aluminium.

[3]
Markscheme

3.1 Introducing chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /3.1 Introducing chemical reactions

134 exam-style questions on OCR GCSE Chemistry 3.1 Introducing chemical reactions, covering 3.1.1 Writing formulae and balanced chemical equations, 3.1.2 Formulae of compounds from ions, and state symbols, 3.1.3 Conservation of mass and observed changes in mass, 3.1.4 Half equations and balanced ionic equations, 3.1.5 The mole and the Avogadro constant, and 3.1.6 Stoichiometry, limiting reactants and reacting masses. Each one has a worked solution and a mark scheme showing where the marks go.

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