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4.1 Reactivity of metals

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Question 6

A freshly cut surface of sodium quickly goes dull in air because the sodium reacts with oxygen. The product is sodium oxide, $Na2O\text{Na}_2\text{O}$ .

The balanced symbol equation for this reaction is written with the smallest whole-number coefficients. How many atoms of each element are on each side of this equation?

[1]

$4$ sodium atoms and $2$ oxygen atoms

$4$ sodium atoms and $4$ oxygen atoms

$2$ sodium atoms and $1$ oxygen atom

$2$ sodium atoms and $2$ oxygen atoms

Markscheme

4.1 Reactivity of metals Questions

GCSE
Chemistry
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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