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1.1 Formulae, equations and hazards

1.1 Formulae, equations and hazards

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Question 45

Solid cobalt(II) carbonate reacts with dilute hydrobromic acid to produce aqueous cobalt(II) bromide, carbon dioxide gas, and liquid water.

CoCO3(s)+2HBr(aq)→CoBr2(aq)+CO2(g)+H2O(l) \text{CoCO}_3(\text{s}) + 2\text{HBr}(\text{aq}) \rightarrow \text{CoBr}_2(\text{aq}) + \text{CO}_2(\text{g}) + \text{H}_2\text{O}(\text{l}) CoCO3​(s)+2HBr(aq)→CoBr2​(aq)+CO2​(g)+H2​O(l)

Write the ionic equation for this reaction. Include state symbols.

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Markscheme

1.1 Formulae, equations and hazards Questions

  1. GCSE
  2. /Chemistry
  3. /1.1 Formulae, equations and hazards

230 exam-style questions on Edexcel GCSE Chemistry 1.1 Formulae, equations and hazards, covering 1.1.1 Formulae, word and balanced equations, 1.1.2 Balanced ionic equations, and 1.1.3 Hazard symbols and risk in practical work. Each one has a worked solution and a mark scheme showing where the marks go.

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