Reversible Reactions

Part of the Energy, Rates and Equilibrium section of Coddy's Chemistry journey. Lesson 21 of 35.

A reversible reaction goes both ways, written with ⇌.

$\mathrm{N_2} + 3\mathrm{H_2} \rightleftharpoons 2\mathrm{NH_3}$

Left to right: forward. Right to left: reverse. Exothermic one way, endothermic the other.

Balance it like any equation.

Challenge

Ammonia is made from nitrogen and hydrogen in a reversible reaction. Balance N₂ + H₂ ⇌ NH₃.

Try it yourself

Equation balancerBalance the equation

N₂H₂NH₃

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Energy, Rates and Equilibrium

1Energy in Reactions

4Rates of Reaction

7Practice Problems

2Bond Energies

5Equilibrium

3Changes of State

6Changing an Equilibrium