Chemistry Forum

but asks to complete the reaction

I didn't understand what is being done

??

balance

Complete the reactions below, where possible, explain why they occur. Balance and classify them according to the type of reaction:
a) (NH4) 2SO3 + KOH →
b) BaCO3 + HBr →
c) Au + CuSO4 →
d) NaBr + AgNO3 →
e) Na + H2O →

chloride, sodium hypochlorite and sodium hydroxide. After the equation is in molecular form, balance by trial if necessary.