Ch.4 - Chemical Quantities & Aqueous ReactionsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Balance the following redox reactions occurring in basic solution.MnO4−(aq) + Br -(aq) → MnO2(s) + BrO3−(aq)a. MnO4−(aq) + H2O(l) + Br−(aq) → MnO2(s) + 2OH−(aq) + BrO3−(aq)b. 2MnO4−(aq) +  H2O(l) + Br

Problem

Balance the following redox reactions occurring in basic solution.

MnO4(aq) + Br -(aq) → MnO2(s) + BrO3(aq)

a. MnO4(aq) + H2O(l) + Br(aq) → MnO2(s) + 2OH(aq) + BrO3(aq)

b. 2MnO4(aq) +  H2O(l) + Br(aq) → 2MnO2(s) + 2OH(aq) + BrO3(aq)

c. 2MnO4(aq) +  H2O(l) + Br(aq) → 2MnO2(s) + OH(aq) + BrO3(aq)

d. MnO4(aq) +  H2O(l) + 2Br(aq) → MnO2(s) + OH(aq) + 2BrO3(aq)