Which is the correct mass-action expression, Qc, for the following chemical reaction? Sn?-lac) + 120219) +…

Which is the correct mass-action expression, Qc, for the following chemical reaction? Sn?-lac) + 120219) + 3H204 = SnO2(s) + 2H30″(a) SnO2] [4,0*12 [H0]|Sa) (0,11/2 [Snº” 1 (0,112 H30 0 4,0+? Sm?’1 10,11/2 H20 4,0||Snºl (0,112 O None of these expressions is correct.