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Multiple Choice
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1

The phrase "like dissolves like" describes
A)the interaction of a polar and a nonpolar substance
B)why water is hydrogen bonded
C)why water and ethanol mix
D)solubility of ionic compounds in nonpolar solvents
2

When water evaporates off of an object, the object is
A)cooler
B)warmer
C)experiences no temperature change
D)becomes heavier
3

Convert 353 torr to atm
A)0.464 atm
B)464 atm
C)353 atm
D)3.53 atm
E)35.5 atm
F)None of the above
4

Calculate the pressure in atms of a balloon filled with 7.50 grams of helium gas if the balloon's volume decreases to 7.50 L. Suppose the balloon's pressure and volume are originally 799 mmHg and 15.0 L.
A)1001 torr
B)1431 torr
C)3.10 atm
D)2.10 atm
E)1.10 atm
F)7.50 atm
G)7.99 atm
H)None of the above
5

Which of the following is a correct statement of Boyle's Law?
A)P/T = constant
B)V/P = constant
C)V x P = constant
D)T/V = constant
E)V/T = constant
F)T x V = constant
G)P x T = constant
H)None of the above
6

If 4.29 grams of gas occupies 25.6 L at 49.0 oC at a pressure of 759 mmHg, what volume will 4.29 grams of gas will occupy at 53.0 oC (assume the pressure is unchanged)?
A)2.59 L
B)9.52 L
C)3.59 L
D)4.59 L
E)25.9 L
F)25.6 L
G)None of the above
7

Calculate the number of moles there are when a gas occupies a volume of 3.95 L at 37.0 oC and 0.985 atm.
A)1.28 mole
B)0.153 mole
C)0.201 mole
D)23.3 mole
E)75.3 mole
F)None of the above
8

What is the density of O2 gas at STP?
A)1.43 g/L
B)4.17 g/L
C)22.4 g/L
D)22.4 g/L
E)16.0 g/L
F)2.66 g/L
G)1.17 g/L
H)None of the above
9

The metabolic breakdown of glucose, C6H12O6, in our bodies produces CO2 gas as following: C6H12O6 (s) + 6O2 (g) --> 6CO2 (g) + 6H2O (l) Calculate the volume of dry CO2 gas produced at 37 oC and 1.00 atm when 7.50 g of glucose is consumed in this reaction.
A)7.50 L
B)191 L
C)6.36 L
D)3.71 L
E)4.56 L
F)None of the above
10

The following are characteristics of a solid except:
A)distances between molecules, ions, or atoms in a solid are very close
B)virtually incompressible
C)strong attractive forces
D)weak attractive forces
E)fixed volume
11

The major event in the greenhouse effect is that some of the IR radiation heading back towards space is absorbed by the "greenhouse gases" of the atmosphere. The major "greenhouse gas" is __.
A)NO2
B)CO2
C)SO2
D)SO3
12

Automobile emissions that cause smog are __.
A)carbon monoxide and nitrogen
B)carbon dioxide and carbon monoxide
C)partially burned hydrocarbons and NO
D)carbon monoxide and sulfur dioxide
13

Air consists primarily of what two molecules?
A)O2 and N2
B)O2 and H2
C)O2 andCO2
D)N2 and CO2
E)CO2 and CH4
F)CO2 and H2
14

A characteristic of metals is that they
A)are malleable
B)are brittle
C)shatter
D)are dull





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