Question

give the correct names for each of the following compounds.

1. nacl
2. caso₄
3. albr₃
4. koh
5. mgso₃
6. nac₂h₃o₂
7. fepo₄
8. fecl₂
9. fecl₃
10. nh₄no₃

Explanation:

For naming ionic compounds, we follow the rules:

• For binary ionic compounds (two - element compounds), the name is formed by the cation name followed by the anion name. For example, for \(NaCl\), \(Na^{+}\) is sodium cation and \(Cl^{-}\) is chloride anion.
• When the cation has variable charges (like \(Fe\) in \(FeCl_{2}\) and \(FeCl_{3}\)), we use Roman numerals to indicate the charge of the cation. In \(FeCl_{2}\), \(Fe\) has a \(+ 2\) charge (\(Fe^{2+}\)), and in \(FeCl_{3}\), \(Fe\) has a \(+3\) charge (\(Fe^{3+}\)).
• For compounds with polyatomic ions:
• \(CaSO_{4}\) contains \(Ca^{2+}\) (calcium) and \(SO_{4}^{2 -}\) (sulfate).
• \(KOH\) contains \(K^{+}\) (potassium) and \(OH^{-}\) (hydroxide).
• \(MgSO_{3}\) contains \(Mg^{2+}\) (magnesium) and \(SO_{3}^{2 -}\) (sulfite).
• \(NaC_{2}H_{3}O_{2}\) contains \(Na^{+}\) (sodium) and \(C_{2}H_{3}O_{2}^{-}\) (acetate).
• \(FePO_{4}\) contains \(Fe^{3+}\) (iron(III)) and \(PO_{4}^{3 -}\) (phosphate).
• \(NH_{4}NO_{3}\) contains \(NH_{4}^{+}\) (ammonium) and \(NO_{3}^{-}\) (nitrate).

Answer:

1. Sodium chloride
2. Calcium sulfate
3. Aluminum bromide
4. Potassium hydroxide
5. Magnesium sulfite
6. Sodium acetate
7. Iron(III) phosphate
8. Iron(II) chloride
9. Iron(III) chloride
10. Ammonium nitrate