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SI Units
____ > Meter,m.
Mass > ____
Temp > ____
Time > _____
 length
 kilogram, kg
 kelvin, k
 second, s

____ : std quantities to specify a measurment.
Units

Enery: _________
Capacity to do work

_____: force acting over a distance
Work

Density
formula:
given in units of:
1___=1___
 mass/volume
 g/mL or g/cm^{3} or kg/L^{3}
 mL, cm^{3}

SI Prefixes
giga 10^{?
}___ 10^{6
}___ 10^{3
}Deci 10^{?
}Centi 10^{?
}____ 10^{?
}____ 10^{6
}Nano 10^{?
}____ 10^{12}
9, mega, kilo, 1, 2, mili 3, micro, 9, pico

Unit Conversions
1 lb= ___ g
1 kg= ___ lb
1 oz= ___ g
1 in= ___ cm
1 gal= ___ L
1 cm^{3}= ___ mL
 453.6g
 2.205 lb
 28.35 g
 2.54 cm
 3.785 L
 1 mL

Correct # Sig Figs:
1. 0.04550 m
2. 61200 m
3. 3.0014 km
4. 10 dm=1m
5. 3.000x10^{5}s
 1. 0.04550 m
 2. 6.12x10^{4}m
 3. 3.0014
 4. none b/c its a defined quantity
 5. 3.000

Sig Fig's in Calculations
_________: lowest # sig figs in calculation are in the answer.
Subtraction/addition: ________________.
 Multiplication/Division
 result is same as one w/ fewest # decimal places

Trailing zeros ____ a decimal are always significant.
Trailing zeros ____ a decimal are ambiguous.

Physcial Change: ___________
Chemical Change: __________
 appearence changes but not composition.
 chemical composition of the compound is altered.

Matter:
is composed of atoms.


What are atoms?
The building blocks of matter

What is chemistry? the study of
matter, its properties and interactions

