APPENDIX

Answers to Problems

Q1.

1. sulfur-1, oxygen-2
2. hydrogen-2, sulfur-1
3. carbon-2, hydrogen -4, chlorine-2
4. potassium-2, chromium-2, oxygen-7
5. hydrogen-2
6. carbon-2, hydrogen-6, oxygen-1

Q2.

1. Ag⁺
2. K⁺
3. Cl^-
4. O^2-
5. S^2-

Q3.

1. NaI
2. KCl
3. BaO
4. CaS

Q4.

1. K₂O
2. CaCl₂
3. MgF₂
4. Li₃N

Q5. (For example)

1. Cu⁺ Cu²⁺
2. Sn²⁺ Sn⁴⁺
3. Pb²⁺ Pb³⁺
4. Fe²⁺ Fe³⁺

Q6.

1. Sodium chloride
2. Magnesium oxide
3. Iron(II) oxide
4. Aluminium oxide
5. Copper(II) oxide
6. Chromium(III) chloride

Q7.

1. NaNO₃
2. CaCO₃
3. NH₄Cl
4. Na₂SO₄
5. Mg(NO₃)₂

Q8.

1. Fe₂O₃
2. Al₂(SO₄)₃
3. Zn₃(PO₄)₂

1.

1. sodium hydroxide
2. potassium chloride
3. calcium oxide
4. iron(III) oxide

2.

1. NaCl
2. ZnO
3. LiI
4. KClO₄

3.

1. The name must begin with a capital letter.
2. This symbol is already taken (iodine).

4.

1. 2Na + I₂ → 2NaI
2. submit answer
3. 2K + 2H₂O → 2KOH + H₂

submit answer