What happens when 2NA(NO3) + Cu(OH)2 gets heated?

NaNO₃ and Cu(OH)₂ do not react.

When the mixture of NaNO₃ and Cu(OH)₂ is heated, the two compounds will decompose individually. NaNO₃ decomposes to NaNO₂ and O₂, while Cu(OH)₂ decomposed to CuO and H₂O.
2NaNO₃(s) → 2NaNO₂(s) + O₂(g) …. (heat)
Cu(OH)₂(s) → CuO(s) + H₂O(l) …. (heat)

Why do you find it necessary to write: Na(NO3) . The correct formula is NaNO3 as used by wanszeto