Classification of Matter (unfinished)

based on classification of matter notes

chemistry

the composition of matter and the changes it undergoes

matter

anything that has mass and volume (takes up space)

volume

the amount of three dimensional space an object occupies

mass

a measure of the amount of matter

atom

the smallest unit of an element that maintains the chemical identity to that element

element

a pure substance that cannot be broken down into simpler, stable substances and is made of one type of atom

The Kinetic Molecular Theory of Matter has -—

five assumptions

All matter is ____

composed of particles that are in constant motion

Particles have ___

spaces between them

All particles of matter have ___

energy

Temperature is ___

a measure of the average kinetic energy of the particles

Attractive forces between particles are ___

stronger as particles are closer together

Things that are not made of matter include ___

time, knowledge, feelings, etc. (ideas)

as energy is increased, what happens to particles of a solid?

the particles get closer together

as energy is increased, what happens to particles of a liquid?

the particles spread out

pure substance

has a fixed composition- composed of just one type of particle (atom or molecule)

pure substances are either ___

compounds or elements

elements are the ___

simplest pure substance

elements can’t ___

be broken down to smaller substances by ordinary means

elements are made up of ___

only one type of atom

compounds are also a ___

pure substance- definite composition

compounds are ___

two or more elements combined through a chemical reaction

compounds are composed of ___

a definite group of molecules or ions that are chemically bonded

the set of chemical and physical properties of a compound ___

differ from those of the elements that make up a compound

a mixture is a ___

physical combination of two or more substances

in a mixture, the identities and properties of the individual substance are ___

retained

mixtures can be separated by ___

physical means