In the industrial manufacture of sulfuric acid (reagents of which are used to make phosphate fertilisers), sulfur dioxide gas reacts with oxygen gas in a reversible reaction to produce sulfur trioxide gas.
Write the word equation for this reaction, including the correct symbol to show that the reaction is reversible.
Practise Edexcel GCSE Chemistry Dynamic equilibria with exam-style questions for Foundation and Higher tier. 30 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.