Which is NOT an example of a pure substance?
A) Sugar
B) Air
C) Aluminum foil
D) Water
E) A block of dry ice
Correct Answer:
Verified
Q6: Which quantity is an exact number?
A)3 cars
B)1,000
Q7: Carry out the following calculation and report
Q8: Which number is the largest?
A)4.38 × 103
B)4.38
Q9: Carry out the following calculation and report
Q10: Which measurement has the fewest number of
Q12: Which is an example of a physical
Q13: The number 0.0035880 expressed correctly using scientific
Q14: When 5.5490 × 108 is correctly rounded
Q15: The measurement 78,005,760 expressed correctly using scientific
Q16: Which state of matter does not have
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