(a(i))[1]
If two moles of $\text{Cu(NO}_3)_2$ are heated strongly, two moles of $\text{CuO}$, four moles of A and one mole of B are formed. Write the formula for B.
(a(ii))[2]
Construct the equation for what happens when $\text{Cu(NO}_3)_2$ is heated.
(b)[2]
Aqueous copper(II) nitrate is warmed with aqueous sodium hydroxide and aluminium powder. Name C and D.
(c)[3]
Suggest the name of reagent X and construct the ionic equation, with state symbols, for the formation of the green precipitate, $\text{CuCO}_3(\text{s})$.