Lead Dioxide or Lead IV Oxide
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The balanced chemical equation for the given reaction is: PbO2 + PbO -> 2PbO + O2 Coefficients: 1 PbO2, 1 PbO, 2 PbO, 1 O2.
PbO2 is lead(IV) oxide.
The ionic formula for lead (IV) oxide is PbO2. In this compound, lead is in the +4 oxidation state and oxygen is in the -2 oxidation state.
To balance the chemical equation Pb + PbO2 + H2SO4 → H2O + PbSO4, start by balancing the Pb atoms on the left side by adding a coefficient of 2 in front of Pb on the left side. Then balance the SO4 atoms by adding a coefficient of 4 in front of H2SO4. The balanced equation is 2Pb + PbO2 + 4H2SO4 → 2H2O + 2PbSO4.
Lead dioxide (PbO2) is typically a dark brown or black color.