If sulfur dioxide and oxygen can be made into sulfur trioxide, what is the reverse reaction? Chemistry Chemical Reactions Chemical Reactions and Equations 1 Answer anor277 Dec 16, 2016 #SO_3(g) rightleftharpoonsSO_2(g) + 1/2O_2# Explanation: Vast quantities of #"sulfur trioxide"# are utilized industrially for sulfuric acid synthesis: #SO_3 + H_2Orightleftharpoons H_2SO_4# Answer link Related questions Question #fee47 Question #c5c15 Question #19eb9 Question #e2ea2 Question #bc751 Question #e2ea6 Question #08b07 What is the thermochemical equation for the combustion of benzene? Why are chemical reactions reversible? Why are chemical reactions important? See all questions in Chemical Reactions and Equations Impact of this question 4820 views around the world You can reuse this answer Creative Commons License