Stoichiometry and Chemical Reactions

Vocabulary flashcards covering fundamental terms, reaction types, formulas, and constants from Chapter 3 Stoichiometry lecture notes.

Stoichiometry

The area of study that examines the quantities of substances consumed and produced in chemical reactions.

Reactants

The substances located on the left side of a chemical equation.

Products

The substances located on the right side of a chemical equation.

Combination Reaction

A reaction pattern where two or more substances react to form one product.

Decomposition Reaction

A reaction pattern where one substance breaks down into two or more substances.

Decomposition of Metal Carbonates

A reaction where metal carbonates decompose when heated to give off carbon dioxide ($CO_2$) and a metal oxide.

Combustion Reaction

Rapid reactions that produce a flame, most often involving oxygen in the air as a reactant.

Formula Weight (FW)

The sum of the atomic weights (AWs) for the atoms in a chemical formula.

Molecular Weight (MW)

The sum of the atomic weights (AWs) of the atoms in a molecule.

Percent Composition

The percentage mass contribution of an element in a compound, calculated as $\frac{(\text{\# of atoms})(\text{AW})}{\text{FW of compound}} \times 100$.

Avogadro's Number

Equal to $6.02 \times 10^{23}$, which equals one mole.

Molar Mass

The mass of $1\,\text{mole}$ of a substance, also referred to as atomic weight (AW).