Final answer:
The balanced equation for the reaction between solid nickel(II) oxide and carbon monoxide gas that produces solid nickel and carbon dioxide gas is NiO(s) + CO(g) → Ni(s) + CO2(g).
Step-by-step explanation:
The balanced equation for the reaction between solid nickel(II) oxide and carbon monoxide gas that produces solid nickel and carbon dioxide gas is:
NiO(s) + CO(g) → Ni(s) + CO2(g)
In this reaction, the solid nickel(II) oxide reacts with the carbon monoxide gas to form solid nickel and carbon dioxide gas.