Science 4/17/13

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1.
10 points
If an object has a mass of 82 grams and a volume of 20mL, what is the density?
2.
10 points
In a solution, the substance that dissolves is the _____.
3.
10 points
Name 3 physical properties of metals.
4.
10 points
Particles in salts arrange themselves in a regular geometric pattern to form _____.
5.
10 points
Materials in simple mixtures can be easily separated.
6.
10 points
The phrase change in H2O is caused by _____.
7.
10 points
An object that takes up more space than another object has a lesser volume.
8.
10 points
There are 3 different elements in the molecule of CO2.
9.
10 points
Dew forms when CO2 vapor is cooled.
10.
10 points
Most materials get _____ when they cool, because the particles have _____ space between them.