Encircle the letter of the correct answer. Avoid Erasures! 1. which of these materials is not an example of mixture? a. gravel b. air c. table salt d. soft drink
2.which of these tools can be used to separate mixture?
a. drive
b. thermometer
c. microscope
d. screw driver
3. How can you separate a solution of sugar in water?
a. concentrate it
b. evaporate it
c. saturate it
d. dissolve it
4. Althea extracted 2g of pure dry salt frame 6g of rock salt. The mass of the salt obtained is less than the mass of rock salt because the rock was removed by ______?
a dissolving
b. distillation
c. evaporation
d. decantation
5. A mixture of different colored inks can be separate using ______?
a. chromatography
b. distillation
c. evaporation
d. distillation
6. what is one property of a suspension that is different from that of a solution or colloid?
a. the particles of a suspension will settle down upon long standing.
b. the particles of a suspension reflect light.
c. A suspension is always clear.
d. A suspension is colorless.
7.oil floats in water. The most accurate reason for this is that ______?
a. oil is less dense than water
b. oil is immiscible I water
c. oil is both dense and immiscible in water.
d. oil is heavier than water.
8. an example of colloid is ____?
a. rubbing alcohol
b. mayonnaise
c. soft drink
d. sand in water ​