Recap - Metal Contest

Part of the Oxidation and Reduction section of Coddy's Chemistry journey. Lesson 20 of 27.

Challenge

Aluminum foil is dropped into blue copper(II) chloride solution. It fizzes, gets hot, and reddish copper forms on the foil: Al + Cu²⁺ → Al³⁺ + Cu. Choose the oxidizing agent and the reducing agent, and count the electrons passed in the balanced equation.

Try it yourself

Oxidation numbersFollow the electrons

AlCu²⁺Al³⁺Cu

All lessons in Oxidation and Reduction

1Electron Transfer

What Is Oxidation Oxidation Numbers Rules for Oxidation Numbers Oxidation Numbers in Ions Recap - Number Painter

4Metals and Reactivity

The Reactivity Series Displacement Reactions Metals and Acids Corrosion and RustRecap - Metal Contest

2Redox Reactions

Spotting Redox Oxidizing Agents Reducing Agents Electrons Passed Recap - Who Gave Electrons

5Electrochemistry

Electrolysis Electrolysis of Melts Cells and Batteries Recap - Smelter

3Half-Equations

Writing Half-Equations Balancing with Electrons Half-Equations in Acid Combining Half-Equations Recap - Permanganate

6Practice Problems

Recap - Bleach and Iodide Recap - Copper and Silver Recap - Bromine Redox