Can anyone help with these redox reactions?

Write the observation and chemical equation when:

1) adding iron(III) sulphate to potassium iodide solution

2) adding sodium sulphite solution to acidified potassium permanganate solution

3) adding concentrated sulphuric acid to carbon

Thanks 🙂

1 Answer

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Fe2(SO4)3 + 6KI = 3K2SO4 + 2FeI3

2KMnO4 + 3Na2SO3 + H2O = 2MnO2 + 2KOH + 3Na2SO4

C + 2H2SO4 = CO2 + 2SO2 + 2H2O