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WorksheetsMr. Little - Chemistry Semester Exam Review 2
Total questions: 12
Worksheet time: 6mins
Which of the following does NOT involve a physical change?
mixing
melting
grinding
decomposing
Which of the following processes does NOT involve a change in chemical properties?
rusting
fermenting
boiling
burning
In the measurement 0.503 L, which digit is the estimated digit?
5
the 0 immediately to the left of the 3
3
the 0 to the left of the decimal point
How many significant figures are in the measurement 811.40 grams?
two
three
four
five
Express the product of 2.2 mm and 5.00 mm using the correct number of significant digits.
10 mm 2
11 mm2
11.0 mm2
11.00 mm2
What is the measurement 1042 L rounded off to two significant digits?
1.0 x 103 L
1040 L
1050 L
1.1 x 103 L
What is the metric system prefix for the quantity 0.000 001?
centi-
deci-
kilo-
micro-
What is the SI unit of mass?
liter
joule
candela
kilogram
Which of the following mass units is the largest?
1 cg
1 dg
1 mg
1 ng
If the temperature changes by 100 K, by how much does is change in °C ?
0 °C
37 °C
100 °C
273 °C
Chlorine boils at 239 K. What is the boiling point of chlorine expressed in degrees Celsius?
°C 93
34 °C
-61 °C
-34 °C
What is the density of an object having a mass of 8.0 g and a volume of 25 cm3 ?
0.32 g/cm3
2.0 g/cm3
3.1 g/cm3
200 g/cm3
