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Quiz 2: Chemical Reactions, Atmospheric Science, and Physical Properties

A solved quiz covering chemical reactions, atmospheric science, and physical properties.

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Quiz 2: Chemical Reactions, Atmospheric Science, and Physical PropertiesQuiz 2Multiple 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 bedonea.by filtrationb.dissolving in waterc.with a magnetd.by burning_B___2.In the balanced equation, 2 Al + 6 HCl2 AlCl3+ 3 H2, the sum of the coefficients of the reactants isa.5b.8c.13d.none of these____3.Theequation, 2 C(s) + O2(g)2 CO(g), tells usa.the number of atoms of each kind in reactants and products is the sameb.carbon monoxide (CO) is a productc.two atoms of carbon undergo reactiond.all of these_A___4.What prefix is thelargest?a.megab.centic.microd.kilo__A__5.When coal and fuel oil are burned, what two primary pollutants are formed?a.SO2and CO2b.HNO3and H2SO4c.CO and O3d.hydrocarbons and NO2__D__6.In air pollution abatementa.allpollutants are necessarily eradicatedb.the amounts of pollutants are decreasedc.some pollutants are eradicated necessarilyd.all of the above__C__7.Which atmospheric region contains the protective ozone layer?a.troposphereb.mesopherec.stratosphered.thermosphere_B___8.Which atmospheric region contains the protective ozone layer?a.7b.5c.15d.31__C__9.Which of the following pairs of atoms share electrons equally?

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Chemistry

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