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Chemistry Chap 1 Terms
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Smallest particle of an element that can exist
Chemical change
Process in which one or more substances are converted to one or more new substances
chemical formula
Describes the composition of a compund using symbols for the elements that make up the compound
chemical property
Describes what the substance is made up of and what chemical changes it undergoes
chemical reaction
also known as a chemical change
compound
Pure substance that consists of two or more elements in definite proportions
density
ratio of objects mass to its volume
element
pure substance that cannot be broken down to simpler pure substances even by chemical means
energy
The capacity to do work
gas
matter that lacks a defined shape or volume
heterogeneous mixture
mixture that contains visibly different phases, each with different properties
homogeneous mixture
mixture that contains only one visibly distinct phase with uniform properties throughout (ie. milk, salt water)
kinetic energy
energy in motion
liquid
matter that has a defined volume but takes shape of the container
mass
measure of the quantity of matter
matter
anything that has mass and occupies space
metal
matter that is classified by its shiny luster and conductive to electricity
mixture
Combination of more than one pure substance in which each retains its own properties and can be separted by physical means
molecule
combination of elemental units
nonmetal
piece of matter that is not shiny in luster and not conductive to electricity
physical change
Process in which a substance changes its appearance but not its chemical composition
physical property
Characteristic that can be observed without changing the basic composition (chemical identify) of something
physical state
form matter can take
potential energy
energy possessed by an object because of its position; stored energy
pure substance
Definite and constant composition that can't separated by physical means
solid
matter that has a defined shape and volume
Author
elby317
ID
31983
Card Set
Chemistry Chap 1 Terms
Description
Key terms for chapter one and matter
Updated
2010-08-31T03:06:59Z
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