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Introducing chemical reactions

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Question 28

Sodium reacts with chlorine. Sodium chloride is made.

What is the balanced symbol equation for this reaction?

$Na+Cl→NaCl\text{Na} + \text{Cl} \rightarrow \text{NaCl}$

$Na+Cl2→NaCl2\text{Na} + \text{Cl}_2 \rightarrow \text{NaCl}_2$

$2Na+Cl2→2NaCl2\text{Na} + \text{Cl}_2 \rightarrow 2\text{NaCl}$

$2Na+Cl→Na2Cl2\text{Na} + \text{Cl} \rightarrow \text{Na}_2\text{Cl}$

Markscheme

Introducing chemical reactions Questions

GCSE
Chemistry
Introducing chemical reactions

55 exam-style questions on OCR GCSE Chemistry Introducing chemical reactions. Each one has a worked solution and a mark scheme showing where the marks go.

Introducing chemical reactions

Question bank

Introducing chemical reactions

Easy Medium Hard

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

Question 28

Sodium reacts with chlorine. Sodium chloride is made.

What is the balanced symbol equation for this reaction?

$Na+Cl→NaCl\text{Na} + \text{Cl} \rightarrow \text{NaCl}$

$Na+Cl2→NaCl2\text{Na} + \text{Cl}_2 \rightarrow \text{NaCl}_2$

$2Na+Cl2→2NaCl2\text{Na} + \text{Cl}_2 \rightarrow 2\text{NaCl}$

$2Na+Cl→Na2Cl2\text{Na} + \text{Cl} \rightarrow \text{Na}_2\text{Cl}$

Markscheme

Introducing chemical reactions Questions

GCSE
Chemistry
Introducing chemical reactions

55 exam-style questions on OCR GCSE Chemistry Introducing chemical reactions. Each one has a worked solution and a mark scheme showing where the marks go.