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Chapter 1 Practice Quiz 2

Terms in this set (20)

What public health concerns are connected with poor air quality?
Lung cancer, asthma and bronchitis, and cardiovascular disease
In the air you breathe, which gas has the lowest concentration?
Helium
Which elements are paired correctly with these chemical symbols? S, Si, Au
Sulfur, silicon, gold
Which of the numbered elements are known as inert gasses?
5 only
Which of these gasses is not hazardous to breath in low concentration?
Carbon dioxide
Which is hazardous when present in air because it is colorless, odorless, and can bind to hemoglobin more strongly than oxygen?
Carbon monoxide from faulty space heaters
Which chemical equation could correspond to this representation?
N2+O2-->2NO
Which region of the atmosphere contains ground-level ozone?
Troposphere
Ground-level ozone is "bad" for all these except:
It can cause lung cancer
Which compound, when present in the troposphere, is involved in the formation of ozone?
NO
Which list is in order of increasing concentration?
1ppb <1ppm <1%
Which reaction takes place in the catalytic converter of an automobile?
Conversion of NO to NO2 and O2
VOCs are volatile organic compounds. What does volatile mean?
Evaporates easily
Which of these can be involved in forming VOCs?
Gasoline, paint, and nail polish
Although water evaporates fairly easily, it is not considered a VOC because
It is not organic
Which of these gasses is not part of the exhaust of an automobile engine?
Ozone
Which of these are both hydrocarbons?
Methane and ethane
If a hydrocarbon is burned under the conditions where oxygen is plentiful, water vapor and ___ are the most likely products
Carbon dioxide
Which chemical equation shows the combustion of a hydrocarbon in which oxygen is limited (ie, incomplete combustion)?
2C8H18+17O2--16CO+18H2O
If this equation for the complete combustion of ethanol is balanced with whole number coefficients, what is the coefficient for O2? _C2H5OH+_O2-->_CO2+_H2O
3
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