Studied by 1 personchemistry
study of matter and the changes it undergoes
matter
anything that has mass and occupies space
Mass is
independent of location
The two branches of chemistry are:
inorganic and organic
What are the four physical states of matter?
solid, liquid, gas, plasma
What are the two types of solids?
crystalline and amorphous
Solid refers to
crystalline solids
solid
particles touch and it not compressible
Solids have
definite volume and shape
Solid + Heat =
Liquid
Liquid
particles slightly touch and not compressible
Liquids have
indefinite shape and definite volume
Liquid + Heat=
Gas
Gas
particles not touching and very compressible
Gases have
indefinite volume and shape
How can you classify matter?
pure substance or mixture
pure substance
element or compound
mixture
homogenous or heterogenous
compounds
ionic or molecular
Ionic compound contains
metal
qualitative
oberservations
quantitative
numerical data
Scientific Method
Wonder
Pattern
Hypothesis
Testing
Theory
hypothesis
tentative explanation to account for patterns and observations
Theory
a very well tested hypothesis
Scientific Law
an explanation of a natural phenomena with no known exceptions
Note 
Flashcard (187)