Question

name 2 material loose luster when exposed to air and water​

Answer 1

Answer:

METALS WHEN EXPOSED TO AIR AND MOISTURE LOSE THEIR LUSTRE DUE TO THE FORMATION OF COMPOUNDS . FOR EXAMPLE:WHEN COPPER IS EXPOSED TO SUCH ENVIRONMENTAL CONDITION , IT slowly acquires a dull green coating.

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Answer 2

Answer:

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Explanation:

Answer. METALS WHEN EXPOSED TO AIR AND MOISTURE LOSE THEIR LUSTRE DUE TO THE FORMATION OF COMPOUNDS . FOR EXAMPLE:WHEN COPPER IS EXPOSED TO SUCH ENVIRONMENTAL CONDITION , IT slowly acquires a dull green coating.