a strong chemical bond that is formed by the attraction between two ions of opposite charges

a chemical bond between two atoms, in which each atom shares an electron

a chemical bond where positive metal ions form a lattice structure with freely moving electrons between them

an interaction between the atoms of two substances where the atoms rearrange to form two new molecules

a chemical reaction that takes in heat

a chemical reaction that gives off heat

a new substance produced in a chemical reaction

the SI unit for the amount of a substance

the substance present at the beginning of a chemical reaction

the tendency of a substance to react with other substances

a measure of the strength of a solution; i.e., the amount of the solute in the solvent

the minimum amount of energy a reaction needs to start

the point at which the rate of the forward reaction is equal to the rate of the backward reaction

a reaction in which the products can never be turned back into the reactants

a reaction in which, under the right conditions, the products can be turned back into the reactants

a substance which speeds up a chemical reaction without being changed by the reaction

occurs when an atom loses electrons in a reaction, or when a substance loses hydrogen or gains an oxygen atom in a chemical reaction

occurs when an atom gains electrons in a reaction, or when a substance gains a hydrogen or loses an oxygen atom in a chemical reaction

a reaction that primarily involves the transfer of electrons between two substances