Chemistry Chap 1 Terms

Smallest particle of an element that can exist

Process in which one or more substances are converted to one or more new substances

Describes the composition of a compund using symbols for the elements that make up the compound

Describes what the substance is made up of and what chemical changes it undergoes

also known as a chemical change

Pure substance that consists of two or more elements in definite proportions

ratio of objects mass to its volume

pure substance that cannot be broken down to simpler pure substances even by chemical means

The capacity to do work

matter that lacks a defined shape or volume

mixture that contains visibly different phases, each with different properties

mixture that contains only one visibly distinct phase with uniform properties throughout (ie. milk, salt water)

energy in motion

matter that has a defined volume but takes shape of the container

measure of the quantity of matter

anything that has mass and occupies space

matter that is classified by its shiny luster and conductive to electricity

Combination of more than one pure substance in which each retains its own properties and can be separted by physical means

combination of elemental units

piece of matter that is not shiny in luster and not conductive to electricity

Process in which a substance changes its appearance but not its chemical composition

Characteristic that can be observed without changing the basic composition (chemical identify) of something

form matter can take

energy possessed by an object because of its position; stored energy

Definite and constant composition that can't separated by physical means

matter that has a defined shape and volume