50 cm3\mathrm{cm^{3}}cm3 of propane, C3H8\mathrm{C_{3}H_{8}}C3H8, is mixed with 300 cm3\mathrm{cm^{3}}cm3 of oxygen and burned completely. The products are cooled to room temperature, so the water formed is a liquid. All gas volumes are measured at room temperature and pressure.
What is the total volume of gas left at the end?
150 cm3\mathrm{cm^{3}}cm3
200 cm3\mathrm{cm^{3}}cm3
350 cm3\mathrm{cm^{3}}cm3
400 cm3\mathrm{cm^{3}}cm3
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.