Describing Chemical Reactions: SVHS Chem 11.1 Study Set

chemical reaction

the process by which one or more substances change to produce one or more different substances

chemical equation

A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products

product

A substance produced in a chemical reaction

Reactant

a substance that takes part in and undergoes change during a reaction.

Coefficient

A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.

Precipitate

A solid that forms from a solution during a chemical reaction.

word equation

an equation in which the reactants and products in a chemical reaction are represented by words. A qualitative representation of a chemical change.

formula equation

a representation of the reactants and products of a chemical reaction by their symbols or formulas

catalyst

(n.) a substance that causes or hastens a chemical reaction; any agent that causes change

conservation of mass

the principle stating that matter is not created or destroyed during a chemical reaction. The total mass before and after a chemical reaction is constant.

balanced chemical equation

chemical equation with the same number of atoms of each element on both sides of the equation. a quantitative description of a chemical change using symbols, formulas, and coefficients.

skeleton equation

A chemical equation that doesn't indicate the relative amounts of reactants and products