What is the balanced form of the equation written below?
Cu + H2SO4 → CuSO4 + SO2 + H2O
Cu + 2H2SO4 → CuSO4 + SO2 + H2O
Cu + 2H2SO4 → CuSO4 + SO2 + H2O
as the number of atoms of Cu, S, and O and H are equal for this equation, Thus, its the balanced equation.