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Chemical formulae, equations and calculations

Chemical formulae, equations and calculations

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Question 7

The absorption of carbon dioxide gas by solid calcium oxide is represented by the following chemical equation:

CaO(s)+CO2(g)→CaCO3(s) \text{CaO(s)} + \text{CO}_2\text{(g)} \rightarrow \text{CaCO}_3\text{(s)} CaO(s)+CO2​(g)→CaCO3​(s)

Calculate the mass of carbon dioxide, in kg\text{kg}kg, needed to react exactly with 14 kg of calcium oxide.

[Relative atomic masses (ArA_rAr​): C=12\text{C} = 12C=12, O=16\text{O} = 16O=16, Ca=40\text{Ca} = 40Ca=40]

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Chemical formulae, equations and calculations Questions

  1. IGCSE
  2. /Chemistry
  3. /Chemical formulae, equations and calculations

80 exam-style questions on Edexcel IGCSE Chemistry Chemical formulae, equations and calculations. Each one has a worked solution and a mark scheme showing where the marks go.

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