Composition of Matter

pure substance
Click the card to flip 👆
1 / 33
Terms in this set (33)
pure substance
matter, either a single element or a single compound, that has definite and constant composition
Element
A pure substance made of only one kind of atom
Compound
A pure substance made up of atoms of two or more different elements in a specific ratio joined by chemical bonds
Image: Compound
mixture
a physical combination of two or more substances that are blended together; composition varies
homogenous mixture (solution)
mixture of two or more substances in which the substances are uniformly spread out
Solution
a homogeneous mixture of two or more substances uniformly dispersed throughout
Image: Solution
alloy
A mixture of two or more metals; may be solid or liquid
Image: alloy
heterogeneous mixture
a mixture of two or more substances in which the substances can be easily distinguished
Image: heterogeneous mixture
Colloid
heterogeneous mixture; looks like a solution, but particles are large enough to scatter light
Image: Colloid
Suspension
heterogeneous mixture; particles eventually settle out
Image: Suspension
Immiscibledescribes two or more liquids that do not mix with each otherMiscibledescribes two or more liquids that are able to dissolve into each other in various proportionsTyndall EffectScattering of a light beam as it passes through a mixtureAtomthe smallest unit of an element that maintains the properties of that elementMoleculesmallest unit of a compound; two or more atoms bonded togetherKinetic Theory of Matterstates that all of the particles that make up matter are constantly in motionsoluteSubstance being dissolvedsolventthe substance in which the solute dissolvessolubilitymaximum amount of solute that can dissolve in a given amount of solvent at a given temperature and pressuresaturated solutiona solution that cannot dissolve any more solute at the given conditionsunsaturated solutiona solution that is able to dissolve more solute at the given conditionssupersaturated solutioncreated when a saturated solution is heated allowing more solute to dissolve; when the solution cools, it will contain more solute than it would normally be able to hold at those conditionssoliddefinite shape and volume; atoms/molecules vibrate, but do not move out of positionliquiddefinite volume, but no definite shape (takes the shape of the container); atoms/molecules move over and around each othergasno definite shape or volume (spread out evenly in container); atoms/molecules have enough kinetic energy to completely separate and move in all directionsviscosityresistance to flowplasmano definite shape or volume; atoms break up into electrically charged particles with high energy; most common state of matter in the Universemelting pointtemperature at which a substance changes from the solid to the liquid stateboiling pointtemperature at which a substance changes from a liquid to a gaseous (vapor) statevaporizationheating a liquid to a temperature at which it boils; gas particles form under the surface and then break throughevaporationliquid changes to a gas at a temperature below the boiling pointsublimationsolid changes directly into a gascondensationgas changing into a liquid

Flickr Creative Commons Images

Some images used in this set are licensed under the Creative Commons through Flickr.com.
Click to see the original works with their full license.