Question

question 1
the correct name for licl is
lithium(i) chloride
lithium chloride
monolithium chloride
monolithium monochloride
lithium monochloride
question 2
1 pts
the correct name for feo is ______.
iron(i) oxide
iron(iv) oxide
iron(iii) oxide
iron(ii) oxide
iron oxide
question 3
1 pts
the charge on a barium ion in its ionic compound is ______.
+1
various charges are possible.
-2
+3
+2

Explanation:

Question 1

Lithium (\(Li\)) is a Group 1 metal with a fixed charge of \(+1\). In ionic compound naming, for metals with fixed charges, we don't need to indicate the charge in Roman numerals. Chloride is the anion (\(Cl^-\)). So, the name is lithium chloride.

In \(FeO\), oxygen (\(O\)) has a charge of \(- 2\). Let the charge of \(Fe\) be \(x\). Using the charge - balance rule (\(x+(-2)=0\)), we find \(x = + 2\). For transition metals with variable charges, we use Roman numerals. So, it's iron(II) oxide.

Barium (\(Ba\)) is a Group 2 metal. Group 2 metals lose 2 electrons to form ions. So, the charge on a barium ion (\(Ba^{2+}\)) is \(+2\).

Answer:

lithium chloride

Question 2