Learning Objectives
- Reactions need correct ratios.
- The limiting reactant controls product amount.
- Extra reactant remains unused.
ChemistryMiddle / High School12 min
Reactants, Products, and Leftovers
Model the reaction 2H2 + O2 -> 2H2O and identify the limiting reactant.
H₂
O₂
H₂O
Oxygen is limiting
Live Values
H₂O
0
Leftover H₂
4
Leftover O₂
2
Limiting
Oxygen is limiting
Formula
2H₂ + O₂ → 2H₂O
Every 2 H₂ molecules need 1 O₂ molecule to produce 2 water molecules.
Try this
Choose amounts that leave no reactants leftover.
Set the amounts, then press React.
Tags
ReactantsProductsLeftoversLimiting reactant