water and it's solutions

polar molecules

molecules that have an unequal distribution of charges , meaning they have oppositely charged regions

van der Waals forces

the attraction between molecules , opposite poles attract one another

hydrogen bond

a weak interaction involving a hydrogen atom and a fluoride , oxygen , or nitrogen atom from a different molecule .

mixture

a combination of two or more substances in which each substance retains it’s properties .

solution

another name for a homogeneous mixture , or a mixture with a uniform composition throughout .

solvent

a substance that dissolves another substance .

solute

the substance that is dissolved in the solvent .

acids

substances that release hydrogen ions when they are dissolved in water

bases

substances that release hydroxide ions when they are dissolved in water

pH

the measure of concentration of H+ in a solution

buffers

mixtures that can react with acids or babes to keep the pH in a particular range