Question

is the name of the binary compound for the formula bacl₂?

Explanation:

Step1: Identify the ions

Barium (Ba) forms \( Ba^{2+} \) ions, and chlorine (Cl) forms \( Cl^- \) ions.

Step2: Name the cation

The cation is barium, so we use its elemental name.

Step3: Name the anion

The anion is chloride (since Cl⁻ is chloride ion).

Step4: Combine the names

For a binary compound (composed of two elements) with a metal (barium) and a non - metal (chlorine), we use the name of the cation followed by the name of the anion. Since the formula is \( BaCl_2 \), the ratio of \( Ba^{2+} \) to \( Cl^- \) is 1:2, but in the naming of binary ionic compounds, we don't use prefixes for the ratio when the metal has a fixed oxidation state (barium has a fixed +2 oxidation state). So the name is barium chloride.

Answer:

barium chloride