for question 2 and 5 please and thank you. Name: Pedram harimiPart A: Knowledge and Understanding (/10)6.SCH4U Unit 5 Electrochemistry1.4.The electrode at which oxidation occurs is called thea. oxidizing agentb.cathodereducing agentc.d. anode2. Which of the following is an oxidation-reduction reaction?a. Na → Nat + 1eb. 2 SO₂ + O2 - 2 SO3c. -C. N₂O4 → 2 NO₂d. 2 e + F₂ → 2 F3. Which element is oxidized in the chemical reaction shown by the following chemicalequation?a. Cb. H3 Cu (s)C. Nd. Oe. This is not a redox reactionIn the reaction Fe ->a. oxidizedb. reduced+ 8HNO3 (aq)Date: Dec/25/2023c. CaH₂d. CH₁e. H₂c. electrolyzedd. the oxidizing agentOntario Virtual School3 Cu(NO3)2 (aq)Fe³+ + 3e, the species Fe is5.In which of the following molecules does hydrogen have an oxidation state of -1?a. H₂Ob. NH3+ 2 NO (g) + 4 H₂O (1)What are the oxidation numbers in the compound H3PO4?a. H=+1, P = 0, O = -2b.H=+1, P = +5, 0 = -2c. H = -1, P = +7, 0 = -1d. H=+1, P = + 1, O = -1

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SCH4U Unit 5 Electrochemistry Name: Pedram karimi Part A: Knowledge and Understanding (/10) 1. The electrode at which oxidation occurs is called the a. oxidizing agent b. cathode 6. c. reducing agent d. anode 2. Which of the following is an oxidation-reduction reaction? a. Na →→ Na¹ + 1e 2 SO₂ + O₂ → 2 SO3 C. N₂O4 → 2 NO₂ d. 2e + F₂ → 2 F b. 3 Cu (s) 3. Which element is oxidized in the chemical reaction shown by the following chemical equation? + 8HNO3(aq) a. Cu b. H c. N d. O e. This is not a redox reaction Date: Dec/25/2023 → c. electrolyzed d. the oxidizing agent Ontario Virtual School 4. In the reaction Fe→ Fe³+ + 3e, the species Fe is a. oxidized b. reduced 3 Cu(NO3)2 (aq) + 2 NO(g) + 4 H₂O (1) 5. In which of the following molecules does hydrogen have an oxidation state of -1? a. H₂O b. NH3 c. CaH₂ d. CH4 e. H₂ What are the oxidation numbers in the compound H3PO4? a. H=+1, P = 0, O = -2

SCH4U Unit 5 Electrochemistry Name: Pedram karimi Part A: Knowledge and Understanding (/10) 1. The electrode at which oxidation occurs is called the a. oxidizing agent b. cathode 6. c. reducing agent d. anode 2. Which of the following is an oxidation-reduction reaction? a. Na →→ Na¹ + 1e 2 SO₂ + O₂ → 2 SO3 C. N₂O4 → 2 NO₂ d. 2e + F₂ → 2 F b. 3 Cu (s) 3. Which element is oxidized in the chemical reaction shown by the following chemical equation? + 8HNO3(aq) a. Cu b. H c. N d. O e. This is not a redox reaction Date: Dec/25/2023 → c. electrolyzed d. the oxidizing agent Ontario Virtual School 4. In the reaction Fe→ Fe³+ + 3e, the species Fe is a. oxidized b. reduced 3 Cu(NO3)2 (aq) + 2 NO(g) + 4 H₂O (1) 5. In which of the following molecules does hydrogen have an oxidation state of -1? a. H₂O b. NH3 c. CaH₂ d. CH4 e. H₂ What are the oxidation numbers in the compound H3PO4? a. H=+1, P = 0, O = -2

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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