A change that produces one or more new substances.

to break apart

a combination of substances in which no reactions takes place

a reaction in which a compound breaks down into two or more simple substances

one of the spaces around a nucleus of an atom in which in which an electron moves.

the substance that is dissolved in a solution

a mixture in which one substance is dissolved in another

a reaction in which one element replaces another in a compound

an atom that has either a positive or negative charge.

a reaction ion which elements combine to form a compound.

to keep the number of atoms the same on both sides of the equation

a statement that uses symbols formulas and numbers to stand for a chemical reaction

the attractive force that holds atoms together

a substance capable of dissolving one or more other substances.

a substance that is formed in a chemical reaction

matter cannot be created it cannot be destroyed in chemical and common physical changes

a change in which the apperance of a substance changes but its chemical properties stay the same

a number before a formula in a chemical equation

a chemical change in which elements are combined or rearranged