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Question 5: (2 marks, 0.25 for each) 1) If matter is uniform throughout and cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an) . A) heterogeneous mixture B) element C) homogeneous mixture D) compound 2) A physical combination of sand, salt, and water is an example of a . A) homogeneous mixture B) heterogeneous mixture C) compound D) pure substance 3) A small amount of salt dissolved in water is an example of a . A) homogeneous mixture B) heterogeneous mixture C) compound D) pure substance 4) Which one of the following is a pure substance? A) crude oil B) milk C) salt water D) elemental copper 5) Which one of the following is often easily separated into its components by simple techniques such as filtering or decanting? A) heterogeneous mixture B) compounds C) homogeneous mixture D) solutions 6) For which of the following can the composition vary? A) element B) both homogeneous and heterogeneous mixtures C) homogeneous mixture D) heterogeneous mixture 7) Homogeneous mixtures are also known as . A) compounds B) elements C) substances D) solutions 8) Which physical separation is used to separate gasoline from crude oil? A) solubility B) miscibility C) boiling point D) particle size

          Question 5: (2 marks, 0.25 for each)

1) If matter is uniform throughout and cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an) __________.
A) heterogeneous mixture
B) element
C) homogeneous mixture
D) compound

2) A physical combination of sand, salt, and water is an example of a __________.
A) homogeneous mixture
B) heterogeneous mixture
C) compound
D) pure substance

3) A small amount of salt dissolved in water is an example of a __________.
A) homogeneous mixture
B) heterogeneous mixture
C) compound
D) pure substance

4) Which one of the following is a pure substance?
A) crude oil
B) milk
C) salt water
D) elemental copper

5) Which one of the following is often easily separated into its components by simple techniques such as filtering or decanting?
A) heterogeneous mixture
B) compounds
C) homogeneous mixture
D) solutions

6) For which of the following can the composition vary?
A) element
B) both homogeneous and heterogeneous mixtures
C) homogeneous mixture
D) heterogeneous mixture

7) Homogeneous mixtures are also known as __________.
A) compounds
B) elements
C) substances
D) solutions

8) Which physical separation is used to separate gasoline from crude oil?
A) solubility
B) miscibility
C) boiling point
D) particle size

Added by Shane B.

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