Worksheet on writing formulas and names for simple binary ionic compounds.

Problem Analysis:

The task involves writing the formulas for simple binary ionic compounds. Binary ionic compounds are composed of two elements: a metal (cation) and a nonmetal (anion). The key to solving these problems is understanding the charges of the ions involved and ensuring that the compound is electrically neutral.

#### Part A: Write the formulas for the following simple binary ionic compounds.

1. Sodium sulfide
- Sodium ion: \( \text{Na}^+ \)
- Sulfide ion: \( \text{S}^{2-} \)
- To balance the charges, we need 2 sodium ions for every 1 sulfide ion.
- Formula: \( \boxed{\text{Na}_2\text{S}} \)

2. Magnesium chloride
- Magnesium ion: \( \text{Mg}^{2+} \)
- Chloride ion: \( \text{Cl}^- \)
- To balance the charges, we need 1 magnesium ion for every 2 chloride ions.
- Formula: \( \boxed{\text{MgCl}_2} \)

3. Potassium oxide
- Potassium ion: \( \text{K}^+ \)
- Oxide ion: \( \text{O}^{2-} \)
- To balance the charges, we need 2 potassium ions for every 1 oxide ion.
- Formula: \( \boxed{\text{K}_2\text{O}} \)

4. Barium iodide
- Barium ion: \( \text{Ba}^{2+} \)
- Iodide ion: \( \text{I}^- \)
- To balance the charges, we need 1 barium ion for every 2 iodide ions.
- Formula: \( \boxed{\text{BaI}_2} \)

5. Potassium sulfate
- Potassium ion: \( \text{K}^+ \)
- Sulfate ion: \( \text{SO}_4^{2-} \)
- To balance the charges, we need 2 potassium ions for every 1 sulfate ion.
- Formula: \( \boxed{\text{K}_2\text{SO}_4} \)

6. Silver nitrate
- Silver ion: \( \text{Ag}^+ \)
- Nitrate ion: \( \text{NO}_3^- \)
- To balance the charges, we need 1 silver ion for every 1 nitrate ion.
- Formula: \( \boxed{\text{AgNO}_3} \)

7. Zinc nitride
- Zinc ion: \( \text{Zn}^{2+} \)
- Nitride ion: \( \text{N}^{3-} \)
- To balance the charges, we need 3 zinc ions for every 2 nitride ions.
- Formula: \( \boxed{\text{Zn}_3\text{N}_2} \)

8. Barium fluoride
- Barium ion: \( \text{Ba}^{2+} \)
- Fluoride ion: \( \text{F}^- \)
- To balance the charges, we need 1 barium ion for every 2 fluoride ions.
- Formula: \( \boxed{\text{BaF}_2} \)

9. Lithium chloride
- Lithium ion: \( \text{Li}^+ \)
- Chloride ion: \( \text{Cl}^- \)
- To balance the charges, we need 1 lithium ion for every 1 chloride ion.
- Formula: \( \boxed{\text{LiCl}} \)

10. Calcium iodide
- Calcium ion: \( \text{Ca}^{2+} \)
- Iodide ion: \( \text{I}^- \)
- To balance the charges, we need 1 calcium ion for every 2 iodide ions.
- Formula: \( \boxed{\text{CaI}_2} \)

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#### Part B: Write the names for the following simple binary ionic compounds.

1. LiCl
- Lithium ion: \( \text{Li}^+ \)
- Chloride ion: \( \text{Cl}^- \)
- Name: Lithium chloride

2. MgF₂
- Magnesium ion: \( \text{Mg}^{2+} \)
- Fluoride ion: \( \text{F}^- \)
- Name: Magnesium fluoride

3. Na₃P
- Sodium ion: \( \text{Na}^+ \)
- Phosphide ion: \( \text{P}^{3-} \)
- Name: Sodium phosphide

4. BaO
- Barium ion: \( \text{Ba}^{2+} \)
- Oxide ion: \( \text{O}^{2-} \)
- Name: Barium oxide

5. Sr(NO₃)₂
- Strontium ion: \( \text{Sr}^{2+} \)
- Nitrate ion: \( \text{NO}_3^- \)
- Name: Strontium nitrate

6. ZnCl₂
- Zinc ion: \( \text{Zn}^{2+} \)
- Chloride ion: \( \text{Cl}^- \)
- Name: Zinc chloride

7. Al₂(SO₄)₃
- Aluminum ion: \( \text{Al}^{3+} \)
- Sulfate ion: \( \text{SO}_4^{2-} \)
- Name: Aluminum sulfate

8. KBr
- Potassium ion: \( \text{K}^+ \)
- Bromide ion: \( \text{Br}^- \)
- Name: Potassium bromide

9. Rb₂S
- Rubidium ion: \( \text{Rb}^+ \)
- Sulfide ion: \( \text{S}^{2-} \)
- Name: Rubidium sulfide

10. Ca(OH)₂
- Calcium ion: \( \text{Ca}^{2+} \)
- Hydroxide ion: \( \text{OH}^- \)
- Name: Calcium hydroxide

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Final Answers:

#### Part A:
1. \( \boxed{\text{Na}_2\text{S}} \)
2. \( \boxed{\text{MgCl}_2} \)
3. \( \boxed{\text{K}_2\text{O}} \)
4. \( \boxed{\text{BaI}_2} \)
5. \( \boxed{\text{K}_2\text{SO}_4} \)
6. \( \boxed{\text{AgNO}_3} \)
7. \( \boxed{\text{Zn}_3\text{N}_2} \)
8. \( \boxed{\text{BaF}_2} \)
9. \( \boxed{\text{LiCl}} \)
10. \( \boxed{\text{CaI}_2} \)

#### Part B:
1. Lithium chloride
2. Magnesium fluoride
3. Sodium phosphide
4. Barium oxide
5. Strontium nitrate
6. Zinc chloride
7. Aluminum sulfate
8. Potassium bromide
9. Rubidium sulfide
10. Calcium hydroxide

Final Answer Boxed:
\[
\boxed{
\begin{array}{ll}
\text{Part A:} & \text{Part B:} \\
1. \text{Na}_2\text{S} & 1. \text{Lithium chloride} \\
2. \text{MgCl}_2 & 2. \text{Magnesium fluoride} \\
3. \text{K}_2\text{O} & 3. \text{Sodium phosphide} \\
4. \text{BaI}_2 & 4. \text{Barium oxide} \\
5. \text{K}_2\text{SO}_4 & 5. \text{Strontium nitrate} \\
6. \text{AgNO}_3 & 6. \text{Zinc chloride} \\
7. \text{Zn}_3\text{N}_2 & 7. \text{Aluminum sulfate} \\
8. \text{BaF}_2 & 8. \text{Potassium bromide} \\
9. \text{LiCl} & 9. \text{Rubidium sulfide} \\
10. \text{CaI}_2 & 10. \text{Calcium hydroxide} \\
\end{array}
}
\]