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Density
Sig. Figs.
Scientific Notation
Matter
Potpourri
100
What is the equation for density?
D= M divided by V
100
How many sig. figs. in 2.300 g?
4
100
Why do we use scientific notation in science?
to make very large or very small numbers manageable
100
What is matter?
Anything that has mass and volume
100
How many cm are in 1 meter?
100
200
What are the units for density?
grams per cubic centimeter grams per milliliter
200
How many sig. figs. in 0.000203 cm?
3
200
Put 23400000.0 in scientific notation
2.34 x 10^7
200
What is the SI unit for time?
second
200
What is the difference between precision and accuracy?
Precision is how close your measurements are to each other. Accuracy is how close your measurement is to the target or true value.
300
What is the density for water?
1 g per mL
300
Why are sig. figs. important in science?
They tell how good the data is
300
Put 0.00000102 in scientific notation
1.02 x 10^ -6
300
What is the SI unit for mass?
Kg
300
The metric system is based on factors of what?
10
400
What is the density of a solid that has a volume of 2.34 mL and has a mass of 34.0 g?
14.5 g per mL
400
If you multiply 300.0 mm times 41.2 mm, how many sig. figs. can the answer contain?
3
400
Put 8.34 x 10^ 8 in normal notation
834,000,000
400
What is the "how much space and object takes up"?
volume
400
What is the the law of mass/matter/nrg conservation?
Mass/matter/nrg is neither created nor destroyed, it only changes form.
500
What is the density of a block that is 6.0 cm high, 3.0 cm wide and 8.0 cm deep and has a mass of 8.7 g?
0.060 g per cm cubed
500
If you subtract 23.04 mL from 120.091 mL, what is the correct answer?
97.05 mL
500
Put 4.0045 x 10^ -4 in normal notation
0.00040045
500
What is the difference between mass and weight?
Mass is the amount of stuff. Weight is the pull of gravity.
500
What is the dip that liquids make when placed into a container and how is it significant in science?
The dip is a meniscus. It must be read in calibrated glassware at the bottom.