← Chemistry quizzes

From OpenStax / Rice University

× 10 Cu + 4CN ⇌ ⎣Cu(CN) ⎦ Quiz

12 questions chemistry Grades 9-12

The question sheet

Reveal any answer as you study
  1. What is the standard electrode potential for Ag⁺ + e⁻ ⟶ Ag?

    • +0.22233 V
    • +0.521 V
    • +0.45 V
    • +0.7996 V
    Reveal answer

    Answer: +0.7996 V

    Source evidence

    PDF page 1269: Standard Electrode (Half-Cell) Potentials Half-Reaction E° (V) + − +0.7996 Ag + e ⟶ Ag

  2. What is E° for the half-reaction Au⁺ + e⁻ ⟶ Au?

    • +1.35827 V
    • +0.7996 V
    • +1.692 V
    • +2.866 V
    Reveal answer

    Answer: +1.692 V

    Source evidence

    PDF page 1269: + − +1.692 Au + e ⟶ Au

  3. What is E° for Li⁺ + e⁻ ⟶ Li?

    • −2.931 V
    • −3.04 V
    • −2.98 V
    • −2.71 V
    Reveal answer

    Answer: −3.04 V

    Source evidence

    PDF page 1271: + − −3.04 Li + e ⟶ Li 3+ − −2.28

  4. What is the standard potential for Cl₂ + 2e⁻ ⟶ 2Cl⁻?

    • +0.5355 V
    • +2.866 V
    • +1.0873 V
    • +1.35827 V
    Reveal answer

    Answer: +1.35827 V

    Source evidence

    PDF page 1269: Cl + 2e ⟶ 2Cl +1.35827 2

  5. What is E° for Na⁺ + e⁻ ⟶ Na?

    • −2.71 V
    • −2.931 V
    • −2.98 V
    • −3.04 V
    Reveal answer

    Answer: −2.71 V

    Source evidence

    PDF page 1272: 4 2 + − −2.71 Na + e ⟶ Na 3+ − −2.323

  6. What is the standard potential for K⁺ + e⁻ ⟶ K?

    • −2.71 V
    • −2.931 V
    • −2.98 V
    • −2.52 V
    Reveal answer

    Answer: −2.931 V

    Source evidence

    PDF page 1271: + − −2.931 K + e ⟶ K 3+ − −2.52

  7. What is E° for Rb⁺ + e⁻ ⟶ Rb?

    • −3.04 V
    • −2.98 V
    • −2.92 V
    • −2.931 V
    Reveal answer

    Answer: −2.98 V

    Source evidence

    PDF page 1273: + − −2.98 Rb + e ⟶ Rb

  8. What is the potential for Br₂(aq) + 2e⁻ ⟶ 2Br⁻?

    • +2.866 V
    • +1.35827 V
    • +1.0873 V
    • +0.5355 V
    Reveal answer

    Answer: +1.0873 V

    Source evidence

    PDF page 1269: Br (aq) + 2e ⟶ 2Br +1.0873 2 2+ − −2.868

  9. What is E° for I₂ + 2e⁻ ⟶ 2I⁻?

    • +1.0873 V
    • +0.7996 V
    • +0.5355 V
    • +0.401 V
    Reveal answer

    Answer: +0.5355 V

    Source evidence

    PDF page 1271: 4 − 2− −0.70 HgS + 2e ⟶ Hg + S − − I + 2e ⟶ 2I +0.5355 2 3+ − −0.3382

  10. What is the potential for Cu⁺ + e⁻ ⟶ Cu?

    • +0.521 V
    • +0.7996 V
    • +0.45 V
    • +0.153 V
    Reveal answer

    Answer: +0.521 V

    Source evidence

    PDF page 1270: + − +0.521 Cu + e ⟶ Cu − − F + 2e ⟶ 2F +2.866 2 2+ − −0.447

  11. What is E° for MnO₄⁻ + 8H⁺ + 5e⁻ ⟶ Mn²⁺ + 4H₂O?

    • +1.23 V
    • +0.558 V
    • +1.232 V
    • +1.507 V
    Reveal answer

    Answer: +1.507 V

    Source evidence

    PDF page 1272: MnO + 8H + 5e ⟶ Mn + 4H O

  12. What is E° for O₂ + 4H⁺ + 4e⁻ ⟶ 2H₂O?

    • +0.401 V
    • +0.695 V
    • +1.776 V
    • +1.229 V
    Reveal answer

    Answer: +1.229 V

    Source evidence

    PDF page 1272: − − O + 2H O + 4e ⟶ 4OH +0.401 2 2 + − O + 2H + 2e ⟶ H O +0.695 2 2 2 + − O + 4H + 4e ⟶ 2H O +1.229 2 2 2+ − −0.1262

Play the whole quiz inside a game Answers stay hidden while you play

Make your own — free

Turn any notes into a game in under a minute. Free to start.

Make a quiz