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Apologia Chemistry Module #1
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Which of the following contains no matter? a. A baseball b. A balloon full of air c. Heat d. A light ray
d. A light ray
List the base metric units used to measure length, mass, time, and volume.
meter, gram, seconds, and liter.
In the metric system, what does the prefix milli- mean?
one thousandth
All conversion factors, when in the form of a fraction, must equal _______.
1
Which has more liquid: a glass holding 0.05 kL or a glass holding 12,000 mL?
A glass holding 0.05 kL.
Two students measure the mass of an object that is known to be 50.0 grams. The first student measures the mass to be 49.8123 grams. The second measures the mass to be 50.1 grams. Which student was more precise? Which student was more accurate?
The first was more precise. The second was more accurate.
Explain what a significant figure is.
A significant figure is a measured digit.
How many significant figures are in the following numbers? a. 120350 b. 10.020 c. 0.000000012 d. 7.20 x 10^2
a. 5 b. 5 c. 2 d. 2
A student measures the mass of object A to be 50.3 grams and measures the mass of object B to be 200.24 grams. She then reports he combined mass to be 251 grams. Is this student correct? Why or why not?
...
What would be the units on the following calculations? You do not have to do the math since this question only wants to know the units. a. 8 cm + 2 cm =
b. 4g/2mL =
a. cm b. g/mL
Which answer for question 11 will be a derived unit?
b. g/mL
What are the 2 basic rules for using scientific notation?
1. Place only 1 digit (not a zero) in front of the decimal point. 2. Only significant figures go in front of the multiplication sign.
Which is colder: 50.0 grams of water at 0.00 degrees Celsius or 50.0 grams of water at 32.00 degrees F?
...
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