Chemistry: Exam 2 Questions And Answers Solution Guaranteed

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 A reducing agent _____ electrons. - correct answers Loses How many valence electrons in... 1. Group 1A 2. Group 2A 3. Group 3A 4. Group 4A 5. Group 5A 6. Group 6A 7. Group 7A 8. Group 8A - correct answers 1. 1 valence electron 2. 2 valence electrons 3. 3 valence electrons 4. 4 valence electrons 5. 5 valence electrons 6. 6 valence electrons 7. 7 valence electrons 8. 8 valence electrons Describe the trend of ionization energy. - correct answers 1. Increases from L → R 2. Decreases from T → B What element has the highest electronegativity? What is its value? - correct answers F; 4.0 Describe the trend of electronegativity. - correct answers 1. Increases from L → R 2. Decreases from T → B 3. Noble Gases not included Describe the trend of electron affinity. - correct answers 1. Increases from L → R 2. Decreases from T → B 3. Noble Gases & Group 2A = extremely low 4. Halogens = highest Describe the activity series. - correct answers 1. Elements higher = replace lower 2. Elements lower = can not replace higher In the equation: 2A + 3B → AB + AB₂ What is the limiting reactant if the ratio becomes 3:2.5? What is the excess reactant? - correct answers B; A Quantum Numbers: I