A gas cooker burns methane, CH4\mathrm{CH_{4}}CH4, from natural gas. When there is plenty of air, the methane undergoes complete combustion.
Name the two products of the complete combustion of methane.
Balance the equation for the complete combustion of methane.
CH4+… O2→CO2+… H2O\mathrm{CH_{4}} + \ldots\,\mathrm{O_{2}} \rightarrow \mathrm{CO_{2}} + \ldots\,\mathrm{H_{2}O}CH4+…O2→CO2+…H2O
Describe the test for carbon dioxide and give the positive result.
If the air supply to the cooker is blocked, incomplete combustion takes place. Name the toxic gas that can be produced by incomplete combustion.
Give one other product of incomplete combustion that can make the flame smoky.
36 exam-style questions on Edexcel GCSE Chemistry 10.2 Hydrocarbons, covering 10.2.1 Formulae and structures of the alkanes, 10.2.2 Alkenes and the C=C functional group, 10.2.3 Addition reactions of alkenes and testing for unsaturation, and 10.2.4 Combustion of alkanes and alkenes. Each one has a worked solution and a mark scheme showing where the marks go.