Which Chemical Equation Is Properly Balanced?
A)SO₂ + O₂ $\rightarrow$ H₂SO₄
B)2 SO₂ + O₂ + 2 H₂O

Which chemical equation is properly balanced?

A) SO₂ + O₂ + H₂O $\rightarrow$ H₂SO₄
B) 2 SO₂ + O₂ + 2 H₂O $\rightarrow$ 2 H₂SO₄
C) SO₂ + O₂ + 4 H₂O $\rightarrow$ 2 H₂SO₄
D) 4 SO₂ + O₂ + 4 H₂O $\rightarrow$ 4 H₂SO₄