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Answer 1 · 2015-06-28T18:01:33

B) #"NO"# is the only compound in the list. It is slightly soluble in water.

The other substances are elements.

A) #"N"_2#

The solubility of #"N"_2# in water at 20 °C and 1 bar is approximately 20 mg/L.

B) #"NO"#

The solubility of #"NO"# in water at 20 °C is about 56 mg/L.

C) #"F"_2#

#"F"_2# does not have a recorded solubility because it reacts explosively with water to form #"HF"#, #"O"_2# and #"O"_3#.

#"2F"_2 + "2H"_2"O" → "O"_2+ "4HF"#
#"3F"_2+ "3H"_2"O" → "O"_3+ "6HF"#

D) #"Pb"#

Elementary lead does not dissolve in water.