Chapter 2: Properties of Matter - Mrs. Cox Physical ...



Chapter 2: Properties of Matter

____________: Latin for “__________________”

___________________

▪ matter with the same ______________

▪ ex: table ______ or table ________

▪ has _______________ composition

Elements

▪ _________ be broken down into ______________________

▪ _______: smallest particle of an ________

▪ _______ composition ( only contains ___ type of ______

▪ most are _______ at room ________ (ex: __________)

▪ some are _______ at room temp (ex: _________)

▪ only two are __________ ( _____________________

o both are extremely ______________

▪ __________:

o introduced by Jöns Berzelius

o 1 to 2 letters (based on _______ names)

▪ 1st letter is always __________

▪ 2nd letter is always __________

_________________

▪ made from 2 or more __________________

▪ can be _______________ into simpler substances (_________ or other __________)

▪ properties _______ from the substances from which it was made

▪ always contain _______________ joined in a _______ proportion

▪ ex: _________________

________________

▪ tend to retain some of the _________ of their individual __________

▪ properties can ______

o composition is __________

▪ classified by how well the parts of the _________ are distributed throughout the mixture

1. __________________

▪ ex: ________

▪ parts of mixture are _________ from one another

2. __________________

▪ ex: ________

▪ substances ___________________

▪ difficult to distinguish one substance from another

Solutions, Suspensions, and Colloids

▪ _________: when substances _________ and form a ____________ mixture

o _________ separate into distinct _______ over time

o particles too _______ to settle out of _________, be trapped by a _______, or scatter _______

▪ ________________

o _____________ mixture (________)

o separates into _______ over time

o can scatter ______ and be _________ by a filter

▪ ___________

o contains _________________________

o do not separate into ________ (can’t use _______)

o scatters ________

Physical Properties

▪ characteristics that can be _________ or _________ without changing ___________ of substances

▪ ___________

o resistance to __________

o the ________ it is the _________ it moves

o usually _________ when __________

▪ _____________

o ability to allow _______ to flow

o __________ ( have high ___________

▪ ex: ________

▪ _____________

o ability of _______ to be ___________ without ___________

o ex: most _________

▪ _____________

o use ________ test

o __________ (hardest known material

▪ melting/boiling points

o ___________ ( change from _________________

o ___________ ( temp at which substance ________

▪ __________

o used to test _______ of a substance

Using Physical Properties:

1. To _________ materials

2. To _________ materials

Using Properties to separate mixtures:

▪ _________: separates materials based on _________________

▪ _________: separates substances in a ______ based on _____ points

Physical Changes

▪ some of the _________ of a material change but the substance in the material _______________

▪ some can be ____________ and some cannot

Chemical Properties

▪ any ability to produce a __________ in the composition of _________

▪ can be __________ only when the substances are changing into _______ substances

▪ ___________: ability to _______ in the presence of ________

▪ ___________: how readily a substance combines _________ with other substances

Recognizing Chemical Changes

▪ occurs when a substance _______ and forms one or more new ___________

▪ 3 types of evidence:

1. change in ______ (ex: _____________________)

2. production of _____ (ex: ____________________)

3. formation of a ____________

o ________ that forms and separates from _______ mixture

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