CHEM 104 Unit 1 Quiz
Questions and answers
What is the second most abundant gas that you
inhale with each breath - answer oxygen
What are the order of gasses in the troposphere in
order of increasing concentration? - answer CO2,
Ar, O2, N2
What does the term PM10 refer to - answer
particulate matter with an average diameter less
than or equal to 10 micrometers
Which statement about this chemical equation is
false? 2 NO + O2---> 2NO2 - answer the number of
molecules in the reactants is equal to the number
of molecules in the products
What is true about the formation of the pollutant
NO2 in the atmosphere? - answer NO2 forms slowly
in the atmosphere from the NO emitted by vehicles
When would you expect the peak concentration of
nitrogen dioxide (NO2)? - answer An hour or so
, after the NO peak. NO2 takes time to form in the
atmosphere.
In a tropical rain forest, the concentration of water
vapor in the atmosphere may reach 50,000 ppm.
What is this value expressed as a percent? -
answer 5 %
In the atmosphere, CO2 is still under 0.04%, but
increasing each year. What is this value expressed
in parts per million? - answer 400 ppm
This graph shows the sources of the pollutant
sulfur dioxide (SO2) in the United States in recent
years. Which one contributes the largest amount? -
answer coal-fired power plants ("fuel combustion")
Which statement best explains green chemistry? -
answer the design of chemical products and
processes that reduce or eliminate the use and
generation of hazardous substances.
In a particular country, legislation is introduced
requiring vehicles and industry to completely stop
emitting pollutants in order to end air pollution.
Which statement gives the best analysis of this
proposal?A)This goal is attainable and requires
Questions and answers
What is the second most abundant gas that you
inhale with each breath - answer oxygen
What are the order of gasses in the troposphere in
order of increasing concentration? - answer CO2,
Ar, O2, N2
What does the term PM10 refer to - answer
particulate matter with an average diameter less
than or equal to 10 micrometers
Which statement about this chemical equation is
false? 2 NO + O2---> 2NO2 - answer the number of
molecules in the reactants is equal to the number
of molecules in the products
What is true about the formation of the pollutant
NO2 in the atmosphere? - answer NO2 forms slowly
in the atmosphere from the NO emitted by vehicles
When would you expect the peak concentration of
nitrogen dioxide (NO2)? - answer An hour or so
, after the NO peak. NO2 takes time to form in the
atmosphere.
In a tropical rain forest, the concentration of water
vapor in the atmosphere may reach 50,000 ppm.
What is this value expressed as a percent? -
answer 5 %
In the atmosphere, CO2 is still under 0.04%, but
increasing each year. What is this value expressed
in parts per million? - answer 400 ppm
This graph shows the sources of the pollutant
sulfur dioxide (SO2) in the United States in recent
years. Which one contributes the largest amount? -
answer coal-fired power plants ("fuel combustion")
Which statement best explains green chemistry? -
answer the design of chemical products and
processes that reduce or eliminate the use and
generation of hazardous substances.
In a particular country, legislation is introduced
requiring vehicles and industry to completely stop
emitting pollutants in order to end air pollution.
Which statement gives the best analysis of this
proposal?A)This goal is attainable and requires
