Question

the correct formula for nitric acid is *
a) hno₃(aq)
b) hno₂(aq)
c) nh₃(aq)
d) n₂h₄(aq)
the iupac name for na₂co₃(s) is *
sodium(i) carbonate
sodium(ii) carbonite
sodium carbonate
sodium carbide

Explanation:

Nitric acid has the chemical formula HNO₃. In the given options, HNO₃(aq) represents nitric - acid in an aqueous solution. For Na₂CO₃, according to IUPAC naming rules for ionic compounds, the cation is sodium and the anion is carbonate, so its name is sodium carbonate.

Answer:

a) a
b) sodium carbonate