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Stoichiometry

Stoichiometry Vocabulary TEK Chem 8E

TermDefinition
Composition Stoichiometry involves the mass relationships with elements in a compound
Reaction Stoichiometry involves mass relationships between reactants and products in a chemical reaction
Mole Ratio ratio between the amounts in moles of any two compounds involved in a chemical reaction; can be determined by looking at the coefficients
Molar Mass physical property defined as the mass of a given substance (chemical element or chemical compound) divided by the amount of substance
limiting reactant in a chemical reaction is the substance that is totally consumed when the chemical reaction is complete
excess reactant in a chemical reaction with greater amount than necessary to react completely
theoretical yield the quantity of a product obtained from the complete conversion of the limiting reactant in a chemical reaction
actual yield amount actually produced of a product in a complete reaction
percentage yield percent ratio of actual yield to the theoretical yield
balanced equation the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products
reactant a substance that takes part in and undergoes change during a reaction; left side of a chemical equation
product a substance that is created during a chemical reaction; right side of a chemical equation
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