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ch 1
exam 1
19
Chemistry
Undergraduate 1
09/23/2010
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Term
chemistry
 Definition
The science that deals with the structure of matter and the changes it undergoes.
Term
chemical change/chemical reaction
 Definition
substances are used up and others are formed
Term
physical changes
 Definition
substances do not change their identity
Term
exponential notation
 Definition
Term
rules for significant figures
 Definition
Term
metric system
 Definition
a system in which measurements of parameter are related by 10
Term
factor-label method
 Definition
Term
solid
 Definition
fixed volume, fixed shape
Term
liquid
 Definition

variable shape

fixed volume
Term
gas
 Definition

variable shape

variable volume
Term
density
 Definition
density=mass/volume
Term
specific gravity
 Definition
Term
kinetic energy
 Definition
KE=1/2m x velocity2
Term
potential energy
 Definition

stored energy

substances try to get as low as possible 
Term
specific gravity
 Definition
density of substance/density of water
Term
specific heat
 Definition
Term
degrees c-degrees f
 Definition
f=9/5(c)+32
Term
degrees f- degree c
 Definition
c= 5/9(f-32)
Term
kelvin
 Definition
k=c+273
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