Question

Which of the following Is a chemical equation that accurately represents what happens when sulfur and oxygen react to form sulfur trioxide

Answer 1

S + O₂  → SO₃

This can be balanced by:

2S + 3O₂  → 2SO₃

Option A.

If we check:  Left Hand Side (LHS), Right Hand Side (RHS)

For Sulphur:

                       LHS                RHS

S                      2                    2

O                    3*2 = 6            2*3 = 6