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Suzy is examining a brass lamp. If brass is a mixture of copper and tin, what can Suzy conclude?
A Brass is an impure substance composed of copper, Cu, and tin, Sn.
B Brass is a pure substance represented by the symbol B.
C Brass is a pure substance represented by the symbol Br.
D Brass is an impure substance composed of copper, Co, and tin, Tn.

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luisvaschetto

Brass is an impure substance composed of copper, Cu, and tin, Sn. Copper and tin are metals.

Copper is a metal element categorized by the symbol Cu, whose atomic number is 29.

Tin is a metal element categorized by the symbol Sn (stannum), whose atomic number is 50.

Brass is an alloy of Cu and Sn, whose proportions are generally 66-65% copper and 34-35% tin.

This alloy (brass) exhibits an important resistance to corrosion.

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