Chemistry: Exam 2 Questions For Reflection With Correct Answers 2025

Chemistry: Exam 2 Questions For
Reflection With Correct Answers 2025
List these Polyatomic Ions:
1. acetate
2. ammonium
3. carbonate
4. borate
5. bromate
6. thiocyanate CORRECT ANSWERS 1. C₂H₃O₂⁻
2. NH₄⁺
3. CO₃²⁻
4. BO₃³⁻
5. BrO₃⁻
6. SCN⁻

List these Polyatomic Ions:
1. hypochlorite
2. chlorite
3. chlorate
4. perchlorate
5. cyanide
6. peroxide CORRECT ANSWERS 1. ClO⁻
2. ClO²⁻
3. ClO³⁻
4. ClO⁴⁻
5. CN⁻
6. O₂²⁻

List these Polyatomic Ions:
1. chromate
2. iodate
3. permanganate
4. manganate
5. sulfite
6. sulfate CORRECT ANSWERS 1. CrO₄²⁻
2. IO₃⁻
3. MnO₄⁻
4. MnO₄²⁻
5. SO₃²⁻
6. SO₄²⁻

List these Polyatomic Ions:

, 1. nitrite
2. nitrate
3. hydroxide
4. phosphite
5. phosphate CORRECT ANSWERS 1. NO₂⁻
2. NO₃⁻
3. OH⁻
4. PO₃³⁻
5. PO₄³⁻

List the Solubility Exceptions:
1. Li⁺, Na⁺, K⁺, Rb⁺, Cs⁺
2. NH₄⁺
3. Cl⁻, Br⁻, I⁻
4. NO₃⁻
5. ClO₄⁻
6. CH₃CO₂⁻
7. SO₄²⁻ CORRECT ANSWERS Soluble Compounds:
1. None
2. None
3. Halides of Ag⁺, Hg₂²⁺, Pb²⁺
4. None
5. None
6. None
7. Sulfates of Sr²⁺, Ba²⁺, Hg₂²⁺, Pb²⁺

List the Solubility Exceptions:
1. CO₃²⁻
2. S²⁻
3. PO₄³⁻
4. OH⁻ CORRECT ANSWERS Insoluble Compounds:
1. Carbonates of group 1A, NH₄⁺
2. Sulfides of group 1A, NH₄⁺, Ca²⁺, Sr²⁺, Ba²⁺
3. Phosphates of group 1A, NH₄⁺
4. Hydroxides of group 1A, NH₄⁺, Ca²⁺, Sr²⁺, Ba²⁺

Describe the trend of atomic radii. CORRECT ANSWERS 1. Decreases from L → R
2. Increases from T → B

An anion is _____ than its neutral atom. CORRECT ANSWERS Larger (more e⁻)

A cation is _____ than its neutral atom. CORRECT ANSWERS Smaller (less e⁻)

An oxidizing agent _____ electrons. CORRECT ANSWERS Gains