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Q15: The outside air temperature is 40°F,what is

Q17: Match the following.

Q18: Round the following number to four significant

Q20: How many mg does an 830 kg

Q21: Filtration is<br>A) a process in which the

Q22: Identify the crystalline solid.<br>A) plastic<br>B) cloth<br>C) diamond<br>D)

Q23: Identify the composition of diamond.<br>A) carbon atoms<br>B)

Q24: Define random error.

Q60: How many significant figures are there in

Q90: An acetylene molecule contains 2 atoms of