Barrons SAT Subject Test Chemistry, 13th Edition

Barium (Ba) Green

Strontium (Sr)

Bright red

HYDROGEN SULFIDE TESTS. Bubble hydrogen sulfide gas through the solution of a
salt of the metal being tested. Check color of the precipitate formed.

Compound of

Color of Sulfide Precipitate

Lead (Pb)

Brown-black (PbS)

Copper (Cu)

Black (CuS)

Silver (Ag)

Black (Ag 2 S)

Mercury (Hg)

Black (HgS)

Nickel (Ni)

Black (NiS)

Iron (Fe)

Black (FeS)

Cadmium (Cd)

Yellow (CdS)

Arsenic (As)

Light yellow (As 2 S 3 )

Antimony (Sb)

Orange (Sb 2 S 3 )

Zinc (Zn)

White (ZnS)

Bismuth (Bi)

Brown (Bi 2 S 3 )

CHAPTER SUMMARY

The following terms summarize all the concepts and ideas that were introduced in
this chapter. You should be able to explain their meaning and how you would use
them in chemistry. They appear in boldface type in this chapter to draw your
attention to them. The boldface type also makes it easier for you to look them up if
you need to. You could also use the Internet search engine goole.com on your
computer to get a quick and expanded explanation of these terms, laws, and
formulas.