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10 Cards in this Set
- Front
- Back
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How are MCLG (maximum contaminant level goal) and MCL (maximum contaminant level) values related for a carcinogenic drinking water pollutant such as benzene?
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Both the MCLG and the MCL values must both be set to zero
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The gasoline additive MTBE has contaminated ground water in some areas. MTBE is _______________ and __________
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a polar substance, if oxygenated gasoline is leaks or spills the MTBE can dissolve into ground water.
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An aquifer is
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a great pool of water trapped below the Earth's surface in sand and gravel
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Of the salts sodium sulfate (Na2SO4), ammonium nitrate, (NH4NO3), aluminum hydroxide (Al(OH)3), and sodium chloride (NaCl), which are soluble in water?
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Na2SO4, NH4NO3, and NaCl only
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Rank these covalent bonds in order of increasing polarity.
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H—N < H—S < H—O
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When a 0.1 M solution of ethanol, C2H5OH, in water is tested for conductivity using the type of apparatus shown the light bulb will ______________; ethanol is _____________.
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not light up; in molecular form in aqueous solution.
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When sodium nitrate, NaNO3, dissolves in water
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ions of Na+ and NO3- are formed in the polar solvent
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Which statement reflects the world population's access to safe drinking water?
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Access to safe drinking water is common in urban areas of North America and Europe
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The correct formula and charge for the sulfite ion is _______.
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SO32-
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When NaCl dissolves in water the structure of the solution is best described as
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Na+ cations surrounded by the oxygen atoms of several water molecules, and Cl¯ anions surrounded by the hydrogen atoms of several water molecules
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