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Ch.6 Matter

QuestionAnswer
matter anything that takes up space and has mass
substance element or compound hat cannot be broken down into simples components without losing the properties of the original substance
element substance with atoms that are alike
compound substance in which the atoms of two or more elements are combined in a fixed proportion
heterogenous mixture substance in which the different compounds are easily changed
homogenous mixture substance containing two or more compounds or components that are blended uniformanlly
suspension heterogenous mixture containing a loquid, and in which visible particles slowlyy settle due to gravity
colloid heterogenous mixture whose particles never settle
Tyndall effect tendency for a beam of light to scatter as it passes through a colloid
melting point temperature at which a solid begins o melt
boiling point temperature at which the pressure of the vapor of a liquid is equal to the external of the vapor of a liquid is equal to the external pressure acting on the surface of a liquid
viscosity a fluid resisting to flowing
solubility maximum amount of a solute that can be dissolved in a given amount of solvent at a given temperature
solute in a solution, the substance in which the solute is dissolved
solution homogenous mixture, remains constantly and uniformly mixed and has particles that are so small they cannot be seen without a telescope
density mass per unit volume of a material
oxidation the loss of electrons from the atoms of a substance in a chemical reaction
chemical reaction process in which one or more substances are changed into a new substances are changed into a new substance
physical property any characteristic of a material
chemical property any characteristic of a substance
chemical change change of one substance into another
temperature measure of the average kinetic energy of all the particles that make up an object
plasma matter with enough energy to overcome the attractive force within its atoms
heat of fusion amount of energy required to change a substance from the soil phase to the liquid
heat of evaporation amount of energy it takes for a liquid to boil
evaporation the processs of turning liquid into gas
law of conservation of mass states that the mass of all substances present before a chemical change equals that mass of all the substances remaining after the change
Created by: RandomUser
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