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Density
Scientific Notation
SI Units of Measurement
Significant Figures
Miscellaneous
100
What is the equation for density?
d = m/v
100
What is 1.5 x 102 times 2 x 104?
3 x 106
100
What is the abbreviation for decimeter?
dm
100
What are the two rules for addition/subtraction with sig figs, and multiplication/division with sig figs?
Addition/Subtraction: Conserve smallest number of decimal places Multiplication/Division: Conserve smallest number of sig figs
100
Daily Double! Using dimensional analysis, convert 450 mJ to kJ.
.00045 kJ
200
Air has a density of 1.2 g/L while Neon gas has a density of 0.89 g/L. Will Neon gas sink or rise in air?
Rise!
200
What is 6.2 x 108 divided by 3.1 x 1011?
2 x 10-3
200
For what unit does the abbreviation “ng” stand?
nanogram
200
Conserving the proper number of significant figures, calculate 8.20 + 9.4.
17.6
200
Define the terms accuracy and precision.
Accuracy: How close your value is to the literature/accepted value Precision: How close your values are to each other
300
A piece of metal weighs 3.3 g and has a volume of 1.1 cm3. What is its density?
3 g/cm3
300
What is 7.81 x 102 + 4.65 x 103?
5.431 x 103
300
In one second, how many microseconds are there?
1,000,000
300
Conserving the proper number of significant figures, calculate 3.189 – 2.0715.
1.118
300
What are the name and use of this piece of labware?
Crucible - to heat items directly over a bunsen burner
400
A gas has a density of 1.9 g/L. How much space does 3.8 g of this gas occupy?
2 Liters
400
What is 9.17 x 1010 – 3.22 x 109?
8.848 x 1010
400
In one centiliter, how many milliliters are there?
10
400
Conserving the proper number of significant figures, calculate 3.830/1.4
2.7
400
A student is conducting an experiment to test the effect of different amounts of food on the amount of sleep a mouse gets. Give three examples of controlled variables in this experiment.
type of food, time of feeding, any environmental conditions
500
Salt water from the Dead Sea has a density of 1.24 g/mL. What is the mass of 10 mL Dead Sea water?
12.4 grams
500
Daily Double! What is 5.0 x 103 – 4.21 x 104?
-3.71 x 104
500
In one millimeter, how many meters are there?
0.001
500
Conserving the proper number of significant figures, calculate 5.39 x 82.00
442
500
List the steps of the scientific method, in order.
1. Make observations/come up with a question 2. State a hypothesis 3. Test your hypothesis 4. Analyze your data and draw a conclusion