Ch.4 - Chemical Quantities & Aqueous ReactionsSee 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: Which substance serves as the reducing agent in the following unbalanced reaction that occurs in acid:Cr2O72– (aq) + Ni (s) → Ni 2+ (aq) + 2 Cr 3+ (aq) (acidic solution) a) H+ (aq)b) Cr2O72– (aq)c) Ni (s)d) Ni2+ (aq)e) H2O (l) 

Problem

Which substance serves as the reducing agent in the following unbalanced reaction that occurs in acid:

Cr2O72– (aq) + Ni (s) → Ni 2+ (aq) + 2 Cr 3+ (aq) (acidic solution)

 

a) H+ (aq)

b) Cr2O72– (aq)

c) Ni (s)

d) Ni2+ (aq)

e) H2O (l)