Chem 1010 - General Chemistry 1 » Summer 2021 » Chapter 1 Quiz

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Question #1
How many significant figures are in given measurement: 0.00350 km
A.   6
B.   4
C.   3
D.   1
Question #2
What volume in m3 does 100.0 g of marble occupy? (d = 4.0 g/cm3)
A.   25 x !0-6
B.   25
C.   400
D.   None of the above
Question #3
What is the 25 °C temperature in Fahrenheit (0F) ? Clearly show your work to get full credits (simply type what you did to show your work, and write the answer at the end)
A.   T (0F) = (T(0C)x1.8 + 32 = 25x 1.8 + 32 = 77 0F
B.   F = (9/5)*C + 32 F = (9/5)*25 + 32 F = (9*5 ) + 32 F = 77°
Question #4
A sample has a mass of 612 g and a volume of 78 cm3. What is the identity of the sample?
A.   aluminum (density = 2.7 g/cm3)
B.   iron (density = 7.86 g/cm3)
C.   copper (density = 8.92 g/cm3)
D.   mercury (density = 13.6 g/cm3)
Question #5
Which of the following statement is not true?
A.   The tendency of iron to rust is a chemical property
B.   Wood burning is a chemical change
C.   The shine of silver is a physical property
D.   Melting ice is a chemical change
Question #6
Find the correct significant figures. 0.000340
A.   4
B.   3
C.   5
D.   2
Question #7
Find the correct significant figures. 4578
A.   4
B.   2
C.   3
D.   5
Question #8
Find the correct significant figures. 250
A.   4
B.   3
C.   5
D.   2
Question #9
Find the correct significant figures. 11.005
A.   2
B.   5
C.   4
D.   3

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