Sig Figs
Scientific Notation
Measurement
Dimensional Analysis
Picket Fence
Picket Fence
Classification of Matter
Properties of Matter
Accuracy vs Precision
100
The number of significant figures:
2,987
What is 4?
100
Convert the number to scientific notation:
0.00199
What is 1.99 x 10-3
100
Determine the mass in grams:
What is 263.3 grams?
100
Convert 4 mm to meters. Show your picket fence.
What is 0.004 m?
100
Determine the classification of orange juice with pulp.
What is a heterogenous mixture?
100
You cut a piece of paper into small pieces.
Determine if this is a physical or chemical change.
What is a physical change?
100
Describe the accuracy and precision.
What is high precision and low accuracy?
200
The number of significant figures:
58,000
What is 2?
200
Convert the number to standard notation:
2.998 x 108
What is 299,800,000?
200
The number of millimeters in this graduated cylinder.
What is 76.0 ml?
200
Convert 1600 L to kiloliters. Show your picket fence.
What is 1.6 kL?
200
Determine the classification of gold.
What is an element or pure subbstance?
200
You find a nail on the ground in the parking lot, in a small puddle of water. Rust has formed on the outside of the nail.
Determine if this is a physical or chemical change.
What is a chemical change?
200
Describe the accuracy anf precision.
What is low accuracy and low precision?
300
The number of significant figures:
10,465
What is 5?
300
Convert the number to standard notation:
7.12 x 10-2
What is 0.0712?
300
The number of millimeters in this graduated cylinder.
What is 2.51 ml?
300
Convert 2050 cm to kilometers. Show your picket fence.
What is 0.0205 km?
300
Determine the classification of sodium chloride (NaCl).
What is a compound or pure substance?
300
You pick up an ice cream sandwich from the school cafeteria and stick it in your hoodie pocket so your hands are free to hand the cash over to the cafeteria worker. You run into your chem lab partner on your way to your seat, and he tells you your homework is due next period. You forget all about your ice cream until you pull the plastic full of mush out of your pocket later that afternoon.
Determine if this is a physical or chemical change.
What is a physical change?
300
Jack, a snack food manufacturer, produces bags of potato chips, each measuring 11 oz. He tests the weight of the bags using a scale. There is a slight variation in the measurements: 12.2 oz, 12.33 oz, and 12.13 oz for three samples. Describe the accuracy and precision of Jack's measurements.
What is low accuracy, high precision?
400
The number of significant figures:
0.00873
What is 3?
400
Convert to scientific notation?
0.00880000
What is 8.80000 x 10-3?
400
The length of the pencil in centimeters.
What is 4.10 cm?
400
Convert 0.986 hours to seconds. Show your picket fence.
400
Determine the classification of bronze. Bronze is an alloy of copper and tin.
What is a homogenous mixture?
400
Determine the following property as extensive or intensive:
Density
What is an intensive property?
400
The following measurements were made to determine the density of a material whose value was, according to the Handbook of Chemistry and Physics, 1.15 g/mL
Trial #1 0.95 g/mL
Trial #2 1.16 g/mL
Trial #3 1.26 g/mL
Describe the accuracy and precision of these measurements.
What is low accuracy and low precision?
500
The number of significant figures:
102,430
What is 5?
500
Convert to standard notation:
5.15 x 10-5
What is 0.0000515?
500
The temperature reading of the thermometer in degrees Celsius.
What is 6.5 degrees Celsius?
500
Convert 56,000 micrograms to kilograms. Show your picket fence.
500
Determine the classification of the particle diagram.
What is a compound, or pure substance?
500
Determine the following property as extensive or intensive:
Volume
What is an extensive property?
500
A student took a calibrated 200.0 gram mass, weighed it on a laboratory balance, and found it read 196.5 g. Determine the student’s percent error.
What is 1.75%?