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Chem. 403 class 1
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What are Physical Properties?
properties that a substance has by itself w/o interacting with another substance
examples of physical properties
color, physical state(Liquid gas solid), density, electrical conductivity
What is a physical change?
A substance that changes form
ex. water evaporates
what are chemical properties?
properties of a substance when it changes into or interacts with another substance
ex. flammability and corrosiveness
What are chemical changes?
They make something new and also a change in energy
feet is a measure of
length
feet squared is a measure of...
area
average speed=
average speed= (distance/time)
SI Unit and abbreviation:
Mass
Killograms (Kg)
Unit and abbreviation:
Length
Meter (m)
Unit and abbreviation:
Time
Second (s)
Unit and abbreviation:
Temperature
Kelvin (K)
Unit and abbreviation:
Electric current
ampere (A)
Unit and abbreviation:
Amount of substance
mole (mol)
Unit and abbreviation:
Luminous intensity
Candela (cd)
Prefix: amount and abbreviation
tera
one trillion (T)
10x12
Prefix: amount and abbreviation
giga
one billion (G)
10x 9
Prefix: amount and abbreviation
mega
one million (M)
10 x 6
Prefix: amount and abbreviation
kilo
one thousand (k)
10 x 3
Prefix: amount and abbreviation
deci
one tenth (d)
10 x -1
Prefix: amount and abbreviation
centi
1/100 (c)
10 x -2
Prefix: amount and abbreviation
milli
1/1000 (m)
10 x -3
Prefix: amount and abbreviation
micro
1/1,000,000 (u)
10 x -6
Prefix: amount and abbreviation
nano
1/billion (n)
10 x -9
Prefix: amount and abbreviation
pico
1/trillion (P)
10 x -12
volume formula
volume= length x length x length
density formula
density= mass/volume
extensive property examples
mass and volume
intensive property example
density
extensive properties depend on
amount of stuff you have
intensive properties does not depend on
the amount of stuff you have
kelvin scale zero point called
absolute zero
C to Kelvin
K= C + 273.15
C to F
F= (9/5)C + 32
F to C
C=(F-32)(5/9)
Scientific notation numbers are expressed between
and
1 and 10
Significant figures: how many sig figs?
initial zeros 0.03264
4
Significant figures: how many sig figs?
initial zeros are there
to locate the decimal point
Significant figure: how many sig figs?
zeros at end of number
32640
either 4or 5
this problem can be solved using scientific notation
3.264*10(4)
Accuracy
How well a measured value agrees with the true value
Precision
repeatability of the measurement
Author
mmb65
ID
20575
Card Set
Chem. 403 class 1
Description
Stuff from class one chem
Updated
2010-05-26T20:22:38Z
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