Question

the iupac name for the ionic compound k₃n is tripotassium nitride. * 1 point
true
false
given the iupac name lead(ii) nitrate, what is the correct chemical formula * 1 point for this ionic compound? (nitrate ion is no₃⁻)
pb(no₃)₂
pb₂(no₃)
pbno₃
pb₂(no₃)₂

Explanation:

1. For the compound \(K_3N\), the correct IUPAC name is potassium nitride. The prefix "tri -" is not used in the IUPAC naming of simple ionic compounds when the cation is a main - group metal in its common oxidation state. Potassium (\(K\)) has a + 1 charge and nitride (\(N^{3 -}\)) has a - 3 charge, and the formula \(K_3N\) is the result of charge - balancing.
2. For lead(II) nitrate, lead has a + 2 charge (\(Pb^{2+}\)) and the nitrate ion has a - 1 charge (\(NO_3^{-}\)). To balance the charges, two nitrate ions are needed for each lead ion, so the formula is \(Pb(NO_3)_2\).

Answer:

1. False
2. A. \(Pb(NO_3)_2\)