Chemistry
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Limiting Reagent Challenge

Identify the limiting reactant and predict product yield from mole ratios.

YOUR LAB NOTEBOOK0 / 13missions completed on this device
Stoichiometry reactor
H₂4 molO₂4 molH₂O0 mol
Water yield0 mol
Limiting reagentH₂
Leftover after reactionNot reacted
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Free online limiting reagent game

Limiting Reagent Challenge: experiment guide

This browser-based chemistry game helps you identify the limiting reactant and predict product yield from mole ratios. Designed for Grades 8–12, it turns an abstract idea into a model you can control, measure, reset, and test without signing up.

What you can investigate

Explore Stoichiometry, mole ratios, excess reagent, yield by changing the available controls and comparing the model’s visual and numerical evidence. Try one variable at a time, then combine changes to test a stronger explanation.

Stoichiometrymole ratiosexcess reagentyield

How to use this simulation

  1. 1Read the mission and make a prediction before moving a control.
  2. 2Change one variable so its effect is easier to identify.
  3. 3Run the model and record a value, pattern, or visible change.
  4. 4Reset, test a different setup, and explain the result from evidence.

For students, teachers, and independent study

A typical investigation takes 8–15 min. Use it as a lesson demonstration, a guided inquiry activity, a homework experiment, or a quick review. The simulation runs in a modern web browser and does not require an account.

Level
Advanced
Time
8–15 min
Format
Chemistry game

Common questions

What does the Limiting Reagent Challenge teach?

Identify the limiting reactant and predict product yield from mole ratios. The main ideas are Stoichiometry, mole ratios, excess reagent, yield.

Is the Limiting Reagent Challenge free to use?

Yes. You can run the simulation online for free without creating an account.

How long does the activity take?

Most learners can complete one investigation in 8–15 min. You can repeat it to compare more variables or improve your explanation.