Stat 200 Quiz part 2

Quiz 2 Multiple Choice (3 points each). Identify the choice that best completes the statement or answers the question. __C__ 1. Separating a mixture of iron and sulfur can be done a. by filtration b. dissolving in water c. with a magnet d. by burning _ B___ 2. In the balanced equation, 2 Al + 6 HCl  2 AlCl3 + 3 H2, the sum of the coefficients of the reactants is a. 5 b. 8 c. 13 d. none of these ____ 3. The equation, 2 C(s) + O2(g)  2 CO(g), tells us a. the number of atoms of each kind in reactants and products is the same b. carbon monoxide (CO) is a product c. two atoms of carbon undergo reaction d. all of these _ A___ 4. What prefix is the largest? a. mega b. centi c. micro d. kilo __A__ 5. When coal and fuel oil are burned, what two primary pollutants are formed? a. SO2 and CO2 b. HNO3 and H2SO4 c. CO and O3 d. hydrocarbons and NO2 __D__ 6. In air pollution abatement a. all pollutants are necessarily eradicated b. the amounts of pollutants are decreased c. some pollutants are eradicated necessarily d. all of the above __C__ 7. Which atmospheric region contains the protective ozone layer? a. troposphere b. mesophere c. stratosp...

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