1.4 Flashcards
1
Q
measurement
A
information that is the basis of most hypotheses. theories, and laws, describes the behavior of matter and energy in the macro and microscopic domains of chemistry
2
Q
scientific measurements
A
International Systems, or SI Units
3
Q
fractions and multiples
A
powers of ten
4
Q
length
A
meter
39.97 in
1.094 yd
1 km = 100 m = 10^3 m
1 cm = 0.01 m = 10^-2 m
1 mm = 0.001m = 10^-3 m
5
Q
mass
A
kilogram
1 kg = 2.2 lbs
1 kg = 1/1000 g
1 kg = 10^-3 g
6
Q
temperature
A
kelvin (main) and celsius
same magnitude but different placements of zero
7
Q
time
A
seconds (main), hours, days, years
8
Q
decimeter
A
0.1 m
10 cm
1 dcm^3
1 dcm^3 = 1 L
1 L = 1.06 q
9
Q
density
A
ratio of mass and volume
kg/m^3
more commonly:
g/cm^3 for liquids and solids
g/L for gases
