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- 1. Multiple Choice
When rain freezes and turns to ice or sleet, this is an example of a
physical property
chemical property
physical change
chemical change
- 2. Multiple Choice
Two substances are combined. Gas is released, and a tall, black column forms. This is an example of a
physical property
chemical property
physical change
chemical change
- 3. Multiple Choice
Which answer below is an example of two physical properties of matter?
weight and toxicity
mass and reactivity
mass and volume
mass and pH
- 4. Multiple Choice
When two substances are combined, a milky substance forms and falls to the bottom of the flask. What would be the most likely reason this happened?
One of the substances dissolved.
The substances chemically reacted with one another.
Some of the liquid evaporated.
One of the substances crystallized.
- 5. Multiple Choice
Conductivity is an example of a/an
chemical property
intensive property
extensive property
dependent property
- 6. Multiple Choice
To compress means to be squeezed or pressed together. Why is a gas easily compressible, but solids are not?
Gas particles are much smaller.
Particles in a solid are not strongly attracted to one another.
Molecules in a solid are much larger.
Particles in a gas are much farther apart compared to a solid.
- 7. Multiple Choice
Which state of matter has an indefinite shape and a definite volume?
liquid
solid
gas
plasma
- 8. Multiple Choice
Which state of matter has an indefinite shape and an indefinite volume?
liquid
solid
gas
plasma
- 9. Multiple Choice
Which state of matter has a definite shape and a definite volume?
liquid
solid
gas
plasma
- 10. Multiple Choice
A mixture
is made of a single substance.
is made of more than one substance.
always has a fixed composition.
is made of substances that you can always see at all times.
- 11. Multiple Choice
Students were studying different liquid samples. Which of these is most likely a pure substance?
Liquid A was heated and evaporated completely. Nothing was left behind in the beaker.
An acid was mixed with Liquid B, and bubbles formed.
Once Liquid C cooled, a precipitate formed.
The density of Liquid D is 2.3 g/mL.
- 12. Multiple Choice
If a salad dressing with water and vinegar looks the SAME throughout (has a consistent color and texture), it would be an example of a
heterogeneous mixture
pure substance
compound
homogeneous mixture
- 13. Multiple Choice
What happens when you mix water and NaCl?
NaCl is salt. It will dissolve in water.
NaCl is salt, and it will all just sink to the bottom of the container.
NaCl is salt, and it will all float on top of the water.
We have no way of knowing what NaCl is.
- 14. Multiple Choice
When salt dissolves in water, it is an example of a
heterogeneous mixture
chemical reaction
homogeneous mixture
chemical change
- 15. Multiple Choice
TRUE or FALSE: A salt water solution will look the same throughout.
True
False
- 16. Multiple Choice
Mixtures are
physically combined and can usually be separated.
physically combined and can never be separated.
chemically combined.
We have no way of knowing how they combine.
- 17. Multiple Choice
A salt water solution can be separated by
filtration
a sieve
a centrifuge
evaporation
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