August 26, 2015 CHEM111Karry MacFarlandBasics of MatterStates of Matter- Matter: anything that has mass and occupies spaceo Ie. Water, chair, etc (can see)o Ie. Air, viruses, etc (cannot see)o Made up of atoms/molecules*- Physical States:o Solids (s)- definite volume and shapeo Liquids (l)- definite volume, not shapeo Gas (g)- neither definite volume nor shape Fills container, highly compressible- Why?: Particulate nature of mattero Ie. H20 S- particles are close together; “locked in place” (vibrate in place) l – moving past each other g- far apart; moving past each other quickly*atoms (2 or more) joined in special geometric arrangementsAugust 26, 2015 CHEM111Karry MacFarland- Phase TransitionsGasLiquidSolidClasses of Matter- Pure Substances: element/compound that has constant composition; composed of one type of atom/moleculeo Element- one type of atom (ie. Al, He, etc.)o Compound- two or more elements in fixed proportions (ie. Water)- Mixture: composed of two or more substances in variable proportions (ie. Tea, air, sea water, etc)Properties of Matter- Physical: can be observed without changing the composition of the substance (ie. Liquid water to water vapor)- Chemical: observed by changing the composition (ie. Batter to cake)*atoms (2 or more) joined in special geometric arrangements CondensationVaporizationReleaseEnergyDepositionGain