Answer:
Pb(OH)4 + 2Cu2O → PbO2 + 4CuOH
Step-by-step explanation:
Pb(OH)4 + Cu2O --> PbO2 + CuOH
The end goal of balacing chemical equations is to make sure there is no gain or loss of atoms of elements. Number of atoms of elements in the left side (reactant) must balance with the right side (product) of the reaction.
Currently, the number of Cu, H and O atoms are not balanced.
Pb
Reactant = 1, Product = 1
O
Reactant = 5, Product = 3
Cu
Reactant = 2, Product = 1
H
Reactant = 4, Product = 1
The balanced equation is given as;
Pb(OH)4 + 2Cu2O → PbO2 + 4CuOH
Pb
Reactant = 1, Product = 1
O
Reactant = 6, Product = 6
Cu
Reactant = 4, Product = 4
H
Reactant = 4, Product = 4