Chapter 12 vocab

process in which atoms of one or more substances rearrange to form one or more new substances

a description of a reaction using element symbols and chemical formulas

starting substances in chemical reaction (to the left of the arrow)

substances produced by chemical reaction (to the right of the arrow)

states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after the chemical reaction

number placed in front of an element symbol or chemical formula in an equation

type of chemical reaction in which two or more substances combine and form one compound

reaction where one compound breaks down and forms two or more substances

reaction where one element replaces another element in a compound

Reaction where the negative ions in two compounds switch places, forming two new compounds