Which of the following is not a pure substance?
A) pure gold
B) clean air
C) refined sugar
D) distilled water
Correct Answer:
Verified
Q21: How would you separate a mixture of
Q22: What prefix is the largest?
A) mega
B) centi
C)
Q23: Potential energy is defined as
A) heat energy.
B)
Q24: For which of the following is it
Q25: The quantity 10-9 (one billionth) is designated
Q27: Which of the following would convert 15
Q28: Which state of matter is composed of
Q29: How many chemical formulas are in
Q30: How does the known number of nonmetals
Q31: A person weighs 165 lbs. Which
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