d. For the unbalanced redox reaction i. ii. Br + MnO4 → Br2 + Mn²+ i. ii. Which is oxidizing agent (oxidant)? Write the balanced redox net ionic equation when the reaction is conducted in an acidic solution. e. For the unbalanced redox reaction Cr³+ + MnO4 → Cr₂O7²- + MnO₂ Which is oxidizing agent (oxidant)? Write the balanced redox net ionic equation when the reaction is conducted in a basic solution.

d. For the unbalanced redox reaction i. ii. Br + MnO4 → Br2 + Mn²+ i. ii. Which is oxidizing agent (oxidant)? Write the balanced redox net ionic equation when the reaction is conducted in an acidic solution. e. For the unbalanced redox reaction Cr³+ + MnO4 → Cr₂O7²- + MnO₂ Which is oxidizing agent (oxidant)? Write the balanced redox net ionic equation when the reaction is conducted in a basic solution.

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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Specify which of the following are oxidation-reduction reactions, and if it is, identify the oxidizing agent, the reducing agent, the substance being oxidized, and the substance being reduced. If it is not, select No and leave the following boxes blank. Express your answers as chemical formulas. Omit states-of-matter. a. CH4 (9) + H₂O(g) → CO(g) + 3H₂(g) Redox? Oxidizing Agent Reducing Agent Substance Oxidized Substance Reduced b. 3AgNO3(aq) + Al(s) → A1(NO3)3(aq) + 3Ag(s) Redox? Oxidizing Agent Reducing Agent Substance Oxidized Substance Reduced
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Recognising reduction and oxidation.
2. A 0.6447-g portion of manganese dioxide was added to an acidic solution in which 1.1402 g of a chloride containing sample was dissolved. Evolution of chlorine took place as a consequence of the following reaction: MnO₂ (s) + 2Cl¯ + 4H* → Mn²+ + Cl₂(g) + 2H₂O After the reaction was complete, the excess MnO2 was collected by filtration, washed, and weighed, and 0.3521 g was recovered. Express the results of this analysis in terms of percent aluminum chloride.
a. In which of the following reactions does the oxidation number of carbon show the greatest increase?A. CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)B. C(s) + O2(g) → CO2(g)C. 2CO(g) + O2(g) → 2CO2(g)D. CO2(g) + Ca(OH)2(aq) → CaCO3(s) + H2O(l) b. In which of the following changes is chlorine reduced?A. HCl to Cl2OB. HCl to HClO3C. Cl− to Cl2D. Cl2 to HCl
b. 3H2SO4(aq) + 2Al(OH);(aq) → Al2(SO4)3(aq) + 6H2O(1) 4. In each of the following, identify the reactant that is oxidized and the reactant that is red a. 2Li(s) + F2(g) → 2LİF(s) b. Cl2(g) + 2KI(aq) → I2(s) + 2KCI(aq) atoms of H 5. Calculate each of the following a. number of Li atoms in 4.5 moles ofLi. b. moles of Cu in 7.8 x 10²1 atoms of Cu. c. moles of C2H6 in 3.75 x 1023 molecules of C2H6.
ter 8: EOC t Calculate the number of grams of solute in each of the following solutions. (a) 3.63 L of a 3.23 M HCI solution (b) 36.3 mL of a 14.6 M HNO3 solution (c) 37.3 mL of a 10.4 M AgNO3 solution (d) 1.57 L of a 3.2x10-³ M Na₂SO4 solution Submit Answer Try Another Version [References grams of HCI grams of HNO3 grams of AgNO3 grams of Na2SO4 5 item attempts remaining
2. Specify which of the following are oxidation-reduction reactions and identify the substance being oxidized and the substance being reduced, when appropriate. a. Cu (s) + 2 Ag (aq) + 2 Ag (s) + Cu²+ (aq) b. HCl (g) + NH, (g) → NH,Cl (s) c. SiCl, (l) + 2 H₂O (1)→ 4 HCl (aq) + SiO₂ (s) d. SiCl, (l) +2 Mg (s) 2 MgCl, (s) + Si (s) e. Al(OH), (aq) → AlO, (aq) + 2 H₂O (1) f. CH, (g) +H,O (g) + CO (g) + 3H, (g) g. Zn (s) + 2 HCl (aq) → ZnCl, (aq) + H₂(g) h. 2H* (aq) + 2 CrO, (aq) + Cr₂O," + H₂O (1)
A. Balance the following redox reactions using the half-reaction method. B. Identify the oxidizing agent and the reducing agent. 1. Zn(s) + Fe²+ (aq) → Zn²+ (aq) + Fe (s) 2+ Zn(s) → Zn² +2e- oxidiation haut reaction (aq) 2+ 20+ Fe (an) → Fe (5) Reducation haut reaction (94) - Bris) Reducing agent (S) Fe 2+ oxidizing agent 2. (Balance this reaction In Acidic Solution):
c) Are the following Redox reactions or non-Redox reactions? If you determine that they are Redox, state which reactants have been Oxidised and which have been Reduced? Also remember to assign oxidation numbers for all atoms or ions on the reactant and product side to denote electron transfer for reactions identified as Redox. i) Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) ii) NaOH(aq) + HCl(aq) → NaCl(aq) + H₂O (1)
Please answer the following question:
c. For the unbalanced redox reaction Cu + 10 ➜→ Cu²+ + 1₂ Which is oxidizing agent (oxidant)? Write the balanced redox net ionic equation when the reaction is conducted in an acidic solution.