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: Indicate the half-reaction occurring at Anode, and Cathode.2Ag+(aq) + Pb(s) → 2Ag(s) + Pb 2+(aq)

Solution: Indicate the half-reaction occurring at Anode, and Cathode.2Ag+(aq) + Pb(s) → 2Ag(s) + Pb 2+(aq)

Problem

Indicate the half-reaction occurring at Anode, and Cathode.

2Ag+(aq) + Pb(s) → 2Ag(s) + Pb 2+(aq)

Solution

We’re being asked to indicate the half-reactions occurring at anode and the cathode.

2 Ag+(aq) + Pb(s) → 2 Ag(s) + Pb2+(aq)


We’ll identify the anode and cathode half-reactions using the following steps.

Step 1. Separate the overall reaction into two half-reactions
Step 2. Balance the elements in each half-reaction.
Step 3. Balance the charges: add electrons to the more positive side (or less negative side) 
Step 4. Determine the oxidation half-reaction and the reduction half-reaction. 
Step 5. Identify the anode and cathode half-reaction.


Step 1. Separate the overall reaction into two half-reactions

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