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S(s) + O2(g) = SO2(g)
2 SO2(g) + O2(g) ---> 2 SO3(g)
H2SO4 (l) + SO3 (g) ----> H2S2O7 (l)
H2S2O7 (l) + H2O (l) ----> 2 H2SO4 (l)
Mr Masinde answered the question on May 5, 2018 at 09:44
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