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4.1 Reactivity of metals

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Question 22

A student writes this equation for the reaction of sodium with water:

Na+H2O→NaOH+H2\text{Na} + \text{H}_2\text{O} \rightarrow \text{NaOH} + \text{H}_2Na+H2​O→NaOH+H2​

a.

Give one reason why the student's equation is not balanced.

[1]
b.

Write a balanced symbol equation for the reaction.

[1]
Markscheme

4.1 Reactivity of metals Questions

  1. GCSE
  2. /Chemistry
  3. /4.1 Reactivity of metals

86 exam-style questions on AQA GCSE Chemistry 4.1 Reactivity of metals, covering 4.1.1 Metal oxides, 4.1.2 The reactivity series, 4.1.3 Extraction of metals and reduction, and 4.1.4 Oxidation and reduction in terms of electrons. Each one has a worked solution and a mark scheme showing where the marks go.

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