Question

_Pb304 + _HNO3 → __Pb(NO3)2 + __PbO2 + __H2O​

Answer 1

Pb₃O₄ + 4HNO₃ → 2Pb(NO₃)₂ + PbO₂ + 2H₂O​

Step-by-step explanation:

• Balancing a chemical equation involves putting appropriate coefficients on the reactants and products to make the number of atoms of each element involved equal on both sides of the equation.
• When a chemical equation is balanced then it obeys the law of conservation of mass.
• The law of conservation of mass requires the mass of reactants to be equal to the mass of the products.

• In this case, to balance the equation, we put the coefficients 1, 4, 2, 1 and 2 receptively on the equation.

Thus, the balanced equation will be;

Pb₃O₄ + 4HNO₃ → 2Pb(NO₃)₂ + PbO₂ + 2H₂O​\

• Therefore, on the reactants side there are 3 Pb atoms, 16 O atoms, 4 H atoms and 4 nitrogen atoms.

• Product side : 3 Pb atoms, 16 O atoms, 4 H atoms and 4 nitrogen atoms.

Thus, the equation obeys the law of conservation of mass.