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4.1 Predicting chemical reactions

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Question 2
F

Lithium reacts with water to make lithium hydroxide, LiOH\mathrm{LiOH}LiOH, and hydrogen.

What is the balanced symbol equation for this reaction?

[1]
A

Li+H2O→LiOH+H2\mathrm{Li + H_{2}O \rightarrow LiOH + H_{2}}Li+H2​O→LiOH+H2​

B

Li+2H2O→LiOH+H2\mathrm{Li + 2H_{2}O \rightarrow LiOH + H_{2}}Li+2H2​O→LiOH+H2​

C

2Li+2H2O→2LiOH+H2\mathrm{2Li + 2H_{2}O \rightarrow 2LiOH + H_{2}}2Li+2H2​O→2LiOH+H2​

D

2Li+H2O→2LiOH+H2\mathrm{2Li + H_{2}O \rightarrow 2LiOH + H_{2}}2Li+H2​O→2LiOH+H2​

Markscheme

4.1 Predicting chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /4.1 Predicting chemical reactions

60 exam-style questions on OCR GCSE Chemistry 4.1 Predicting chemical reactions, covering 4.1.1 Properties and trends in Groups 1, 7 and 0, 4.1.2 Properties of the transition metals, 4.1.3 Reactivity predicted from position in the Periodic Table, and 4.1.4 Reactivity of metals and the reactivity series. Each one has a worked solution and a mark scheme showing where the marks go.

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