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6.3 Interpreting and interacting with earth systems

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Question 17

A district heating plant burns methane completely in oxygen. The combustion produces 1100 tonnes of carbon dioxide.

CH4+2O2→CO2+2H2O \mathrm{CH_{4} + 2O_{2} \rightarrow CO_{2} + 2H_{2}O} CH4​+2O2​→CO2​+2H2​O

Relative atomic masses (ArA_rAr​): C = 12.0 H = 1.0 O = 16.0

Calculate the mass of methane burned.

[3]
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6.3 Interpreting and interacting with earth systems Questions

  1. GCSE
  2. /Chemistry
  3. /6.3 Interpreting and interacting with earth systems

109 exam-style questions on OCR GCSE Chemistry 6.3 Interpreting and interacting with earth systems, covering 6.3.1 Formation and evolution of the atmosphere, 6.3.2 The greenhouse effect and climate change, 6.3.3 Sources and problems of atmospheric pollutants, and 6.3.4 Producing potable water. Each one has a worked solution and a mark scheme showing where the marks go.

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