\CHEMICAL RXNS

is a written statement that uses chemical symbols and chemical formulas instead of words to describe the changes that occur in a chemical reaction

is a number that is placed to the left of a chemical formula in a chemical equation.

is a process in which at least one new substance is produced as a result of chemical change

is a reaction in which a single product is produced from two (or more) reactants

is a chemical reaction in which a single reactant is converted into two (or more) simpler substances (elements or compounds)

is a chemical reaction in which an atom or molecule replaces an atom or group of atoms from a compound

is a chemical reaction in which two substance exchange parts with one another and form two different substances

is a chemical reaction between a substance and oxygen (usually from air) that proceeds with the evolution of heat and light (usually from a flame)