Chemical Reactions and Quantities

These flashcards cover key vocabulary terms related to chemical reactions, especially focusing on limiting and excess reactants, yields, and stoichiometric relationships.

Limiting Reactant

The reactant that is completely used up first in a chemical reaction, limiting the amount of product formed.

Excess Reactant

Reactants that are present in greater amounts than necessary and remain after the reaction stops.

Theoretical Yield

The maximum amount of product expected from a reaction based on stoichiometric calculations.

Actual Yield

The amount of product actually obtained from a chemical reaction, measured experimentally.

Percent Yield

A measure of the efficiency of a reaction, calculated by the formula: Percent Yield = (Actual Yield / Theoretical Yield) × 100.

Stoichiometric Relationship

The relationship between the quantities of reactants and products in a balanced chemical equation.

Balanced Equation

An equation that has the same number of atoms of each element on both the reactant and product sides.

Reaction Completion

The state when one reactant is fully consumed, stopping the reaction regardless of the amounts of other reactants.

Product Loss

The loss of product during the reaction process due to various factors such as sticking to containers or escaping as gas.

Chemical Reaction

A process where reactants are transformed into products, involving breaking and forming bonds.