CHEM1001 Introduction to Chemistry PKGO Test
1. Mercury has a freezing point of −39°C and a boiling point of 356.73°C.
Which state will mercury be in at 0°C?
2. What is the physical state of a substance that has a definite shape and volume?
3. A beverage is made by mixing sugar, water, and freshly squeezed lemon juice without pulp.
What is the category of matter of the beverage?
4. A container of lip balm was left in an automobile on a hot summer day which caused it to melt
Which properties accurately describe the melting of lip balm?
5. Fibers collected at crime scenes have electrical conductivity testing performed on them if they are suspected of containing metal
Which properties correctly describe the electrical conductivity of these fibers?
6. A person is driving an automobile when a rock hits the windshield and shatters the glass.
Which change occurred when the glass was broken?
7. Given: 1 ft = 12 in and 1 in = 2.54 cm
If the length of an iron bar is 12.3 ft, what would this measurement be in centimeters?
Use the appropriate number of significant figures
8. How many kilograms of gold are in a jewelry item that has a mass of 15 g and is made of 75% gold by mass?
Use the appropriate number of significant figures.
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