The black tarnish on silver is
A) AgOH.
B) Ag₂O.
C) AgCl.
D) Ag₂S.
Correct Answer:
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Q42: Which of the following statements about the
Q43: Photochromic lenses contain
A)only AgCl embedded in the
Q44: The corrosion of metals,such as the rusting
Q45: All of the following are commonly involved
Q46: When metals react with oxygen,they form
A)oxygen gas.
B)noble
Q48: Most chemical explosions are _ reactions.
A)nuclear fission
B)oxidation-reduction
C)neutralization
D)condensation
Q49: When silver tarnishes,
A)Ag atoms are oxidized to
Q50: A battery in which a fuel is
Q51: A mixture of ammonium nitrate (NH₄NO₃)and fuel
Q52: Roughly _% of all iron and steel
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