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Chapter 3
mass, energy, ya know...stuff
29
Chemistry
Not Applicable
10/14/2004

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Term
Matter
Definition
has mass occupies space
Term
states of matter
Definition
solid,liquid,gas,plasma,BEC
Term
Physicla Properties
Definition
can be determined by observation
Term
chemical properties
Definition
its ability to form new substance
Term
Physical change
Definition
doesn't change identity
Term
Chemical change
Definition
changes chemical composition
Term
Compounds
Definition
can be broken down by chemical methods
Term
elements
Definition
a substance that cannot be broken down into other substances by chem. methods
Term
Mixture
Definition
somthing that has variable composition ex: coffee(strong, week, bitter, sweet)
Term
Mixture
Definition
somthing that cannot be broken down into other substances by chem. method
Term
Pure substnace
Definition
will always have the same compostition
Term
hmogeneous mixture
Definition
is the same throughout
Term
heterogeneous mixture
Definition
is the same throughout
Term
heterogeneous mixture
Definition
contains regions w/ different properties
Term
heterogeneous mixture
Definition
contains regions w/ different properties
Term
filtration
Definition
through a filter
Term
energy
Definition
the capability to do work
Term
calorie
Definition
the amount of energy needed to raise one gram of water one celcius degree
Term
joule
Definition
unit of energy in teh SI system
Term
specific heat
Definition
The amount of energy required to change the temp of one gram of a substance by one celcius degree
Term
1 calorie=
Definition
4.18 Joules
Term
equation for solving heat energy problems
Definition
Q=s x m x delta T
Term
Q=
Definition
energy(heat) required
Term
S=
Definition
specific heat capcity
Term
m=
Definition
mass of sample in grams
Term
delta T=
Definition
change in temp in celcius degrees
Term
1 gram of H2O=
Definition
1 mL
Term
1 mL=
Definition
1cm3
Term
H2O=
Definition
4.18
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