Chapter 17, Question 7 Determine the half-reactions for the following redox proc

Question

Chapter 17, Question 7 Determine the half-reactions for the following redox processes: Your answer is partially correct. Try again Sodium metal reacts with water to give hydrogen gas Write the oxidation half-reaction: Na(s)-Na (aq) + e- Edit Write the reduction half-reaction: Edit B) Gold metal dissolves in "aqua regia" (a mixture of HCl and HNO3) to give [AuCl4] and NO Write the oxidation half-reaction: Edit Write the reduction half-reaction: Edit C) Acidic potassium permanganate reacts with aqueous K2C204, producing carbon dioxide and Mn2+, Write the oxidation half-reaction: Mno4 (aq)+ 8H +5e Mn (aq)+4H2Ol) Edit Write the reduction half-reaction: Edit D) Coal (solid carbon) reacts with steam to produce molecular hydrogen and carbon monoxide Write the oxidation half-reaction: 2H,0)C(s) -CO2(8)+4e +4H Edit Write the reduction half-reaction: Edit

Explanation / Answer

ANSWER:

(A) Redox reaction between sodium and water:

(i) Oxidtion : Na(s) ------> Na+ (aq) + 1e-

(ii) Reduction: H2O(l) + e- ---------> OH-(aq) + 0.5 H2(g)

(B) Redox process of gold and aqua regia

Au (s) + 4Cl- (aq) -------> [Au(Cl)4]- (aq) + 3e-

(ii) Reduction: NO3- + 2H+ (aq) + 1e- --------> NO2(g) + H2O(l)

(C) Redox process between acidic KMnO4 and K2Cr2O7

(i) Oxidation: C2O42-(aq) -------> CO2(g) + 2e-

(ii) Reduction: MnO4-(aq) + 8H+(aq) + 5e- ---------> Mn2+ (aq) + 4H2O(l)

(D) Redox reaction between coal and Water

(i) Oxidation: H2O(g) + C (s) ---------> CO(g) + 2H+(aq) + 2e-

(ii) Reduction: 2H+(aq) + 2e- -------> H2(g)

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.