Online Lab Test
You may only
take this Test ONCE. Your first score will be recorded. Make sure to enter your FULL NAME (not a
nickname) in the box above. Good luck!
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| 1. | Matter that cannot easily separated into simpler things can be called a(n)
_______. a. | element | c. | compound | b. | substance | d. | mixture | | | | |
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| 2. | Combinations of substances are ________. a. | compounds | c. | mixtures | b. | solutions | d. | elements | | | | |
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| 3. | Properties that are unique to a particular substance and can be used to identify that
substance are sometimes called ______ or ______ properties. a. | chemical /
physical | c. | physical /
non-physical | b. | nuclear / physical | d. | ridiculous / silly | | | | |
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| 4. | Which
of the following is NOT a characteristic property of a substance? a. | melting
point | c. | color | b. | specific heat | d. | density | | | | |
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| 5. | Which
of the following is NOT a non-characteristic property of a substance? a. | shape | c. | boiling
point | b. | mass | d. | length | | | | |
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| 6. | You
know a chemical change has occurred if a ______ is formed. a. | colorization | c. | element | b. | solution | d. | new substance | | | | |
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| 7. | Boiling water is a _____ change.
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| 8. | A
mixture that is not evenly mixed is a ______ mixture. a. | sticky-gooey | c. | heterogenous | b. | homogenous | d. | solution | | | | |
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| 9. | Liquid mixtures that do not separate are ___________. a. | solutions | c. | suspensions | b. | heterogenous | d. | oil and water | | | | |
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| 10. | The
_____________ describes whay a light beam shone through a liquid is visible. a. | Horton
effect | c. | Tyndall
Effect | b. | law of suspension | d. | prismatic chromation | | | | |
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| 11. | A
liquid that appears cloudy but clears over time with a white substance forming at the bottom is a
_________. a. | colloid | c. | reaction | b. | suspension | d. | spasmadic solution | | | | |
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| 12. | The
ideal gas law formula is a. | PR=nVT | c. | PV=nRP | b. | PT=nRV | d. | PV=nRT | | | | |
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| 13. | What
does the variable R represent in the Ideal Gas Law? a. | # of
moles | c. | Roald's
constant | b. | Universal gas constant | d. | Gravity constant | | | | |
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| 14. | Using
the applet on the internet, what happens to the pressure if you add gas to the
system? a. | Goes
up | c. | Stays the
same | b. | Goes
down | d. | Fluctuates
irratically | | | | |
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| 15. | Using
the applet in the interent, what happens to the pressure if you lower the volume? a. | Goes
up | c. | Stays the
same | b. | Goes
down | d. | fluctuates
irratically | | | | |
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| 16. | Using
the applet on the internet, what happens to the pressure if you raise the
temperature? a. | Goes
up | c. | Stays the
same | b. | Goes
down | d. | fluctuates
irratically | | | | |
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| 17. | No
mass is lost or gained in a chemical reaction. What law is this? a. | Conservation of
Matter | c. | Conservation of
Particles | b. | Conservation of Momentum | d. | Conservation of Mass | | | | |
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| 18. | Modern Atomic Theory states that atoms are made up of a. | electrons,
neutrons, quarks | c. | protons,
neutrons, electrons | b. | protons, electron, nucleus | d. | protons, nucloids, quarks | | | | |
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| 19. | In
order, list the positive, negative and neutral parts of an atom. a. | protons,
neutrons, electrons | c. | neutrons,
electrons, protons | b. | protons, electrons, neutrons | d. | electrons, protons, neutrons | | | | |
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| 20. | What
liquid is used to evaporate inside the cooling coil? a. | CFC | c. | neon | b. | refrigerant | d. | mercury | | | | |
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| 21. | At
lower pressure, water boils at a _____ temperature. a. | higher | c. | constant | b. | lower | d. | unknown | | | | |
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| 22. | What
is the maximum temperature water can reach in the liquid state at sea level? a. | 212
C | c. | As hot as the
energy available | b. | 100 C | d. | Not able to determine | | | | |
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| 23. | What
does CFC stand for? a. | Cecil's Fried Chicken | c. | Candy's Flour Cart | b. | Carbonous
Fluoride Carcinogens | d. | Chlorofluorocarbons | | | | |
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| 24. | What
type of chemical reaction takes place when you use a cold pack? a. | endothermic | c. | cold
absorption | b. | exothermic | d. | heat absorption | | | | |
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