Chem 1010 - General Chemistry 1 » Summer 2022 » Quiz 1

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Question #1
Modern research requires
A.   communication skills
B.   knowledge in a particular field
C.   a willingness to think about the world
D.   All of these
Question #2
Which of the following is a qualitative statement?
A.   can of soda has a volume of 355 mL.
B.   The melting point of lead is 327.5°C.
C.   Water is a molecule composed of hydrogen and oxygen atoms.
D.   The density of ice at 0°C is 0.917 g/mL.
Question #3
A law is describe as a:
A.   unifying principle that explains a body of facts.
B.   statement summarizing a group of scientific facts.
C.   statement that includes a measurement or number.
D.   possible explanation of observations.
Question #4
On a summer day, the temperature may exceed 100°F. Correctly estimating this temperature in Celsius yields:
A.   8.0°C.
B.   38°C.
C.   56°C.
D.   34°C.
Question #5
Which of the following is not a physical property?
A.   reactivity
B.   temperature
C.   hardness
D.   heat capacity
Question #6
What is the volume of 84.9 g of nickel? (Density of nickel = 8.90 g/mL)
A.   756 mL
B.   76.0 mL
C.   8.54 mL
D.   9.54 mL
Question #7
Which of the following does not describe a physical property?
A.   Elemental sulfur appears yellow in color.
B.   Paper burns to ash.
C.   Table sugar often appears as granulated powder.
D.   A lead brick sinks in water
Question #8
Which metric prefix means 1 × 10-6?
A.   Micro
B.   Milli
C.   Kilo
D.   pico
Question #9
How many significant figures are present in each of the following: 86.9, 3.710, and 0.0492?
A.   three, four, three
B.   three, three, four
C.   three, three, three
D.   Three, four, four
Question #10
Which of the following describes a chemical change?
A.   Ethanol boils when heated.
B.   Ethanol has a high heat capacity.
C.   Ethanol can be produced by the fermentation of grapes.
D.   Ethanol evaporates quickly at room temperature.

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