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Introducing chemical reactions

Introducing chemical reactions

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Question 27

Potassium reacts with chlorine to form potassium chloride.

What is the correctly balanced symbol equation for this reaction?

A

K+Cl→KCl\text{K} + \text{Cl} \rightarrow \text{KCl}K+Cl→KCl

B

K+Cl2→KCl2\text{K} + \text{Cl}_2 \rightarrow \text{KCl}_2K+Cl2​→KCl2​

C

2K+Cl→K2Cl2\text{K} + \text{Cl} \rightarrow \text{K}_2\text{Cl}2K+Cl→K2​Cl

D

2K+Cl2→2KCl2\text{K} + \text{Cl}_2 \rightarrow 2\text{KCl}2K+Cl2​→2KCl

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Introducing chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /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.

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