What is the name of Ca (HSO3) 2? Please choose one:
a calcium sulfide
b. calcium hydrogen sulfite
c. calcium dihydrogen sulfite
D. dicalcium hydrogen sulfite
to calcium sulfite
The Correct Answer and Explanation is :
The correct name for the compound Ca(HSO₃)₂ is calcium hydrogen sulfite.
Explanation:
The compound Ca(HSO₃)₂ consists of calcium ions (Ca²⁺) and hydrogen sulfite ions (HSO₃⁻). To name the compound, we break it down into its individual components.
- Ca²⁺ is the calcium ion.
- HSO₃⁻ is the hydrogen sulfite ion, which is also called bisulfite. This ion consists of one hydrogen (H), one sulfur (S), and three oxygen atoms (O).
The name of the compound is derived from the calcium ion and the hydrogen sulfite ion. Since there are two hydrogen sulfite ions per calcium ion, the full name is calcium hydrogen sulfite.
This is different from other possible names:
- Calcium sulfide (option A) refers to the compound CaS, which only contains calcium and sulfide ions (S²⁻).
- Calcium dihydrogen sulfite (option C) is not correct because the prefix “di-” would imply two hydrogen ions in each sulfite ion, which is not the case here.
- Dicalcium hydrogen sulfite (option D) suggests there are two calcium ions, but this is incorrect since there is only one calcium ion in Ca(HSO₃)₂.
- Calcium sulfite (option E) refers to the compound CaSO₃, where sulfur is in the +4 oxidation state and does not include the hydrogen component of the sulfite ion.
Thus, the correct choice is B. calcium hydrogen sulfite.
I’ll generate a simple image representing the chemical structure of the compound.
Here is an image representing the chemical structure of calcium hydrogen sulfite (Ca(HSO₃)₂). It shows the calcium ion (Ca²⁺) and the two hydrogen sulfite ions (HSO₃⁻) with their bonds. Let me know if you need any more details!
