Chemistry topic
Reactions & Stoichiometry
Balance reactions and follow conserved amounts through stoichiometric ratios and yield.
Calculators
Chemical Equation BalancerBalance molecular or ionic equations with verified whole-number coefficients.Stoichiometry ProblemsPractice stoichiometry problems with step-by-step answers. Check mole, gram, limiting reactant, and percent yield problems with the calculator.Chemical Reaction CalculatorBalance chemical equations, classify reaction patterns, scale quantities, and find limiting reactants with exact stoichiometry.Limiting Reagent CalculatorFind the limiting reactant, excess material, and maximum product for a reaction.Theoretical Yield CalculatorCalculate theoretical product mass from a balanced reaction and one reactant quantity.Percent Yield CalculatorCalculate percent yield, actual yield, or theoretical yield from the other two values.
Core relationships
These equations form an accessible map of the quantities used across this topic.
- A·x = 0
- nᵢ/νᵢ = reaction extent
- % yield = actual/theoretical × 100