Maurice Tutor

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Category > Management Posted 09 Feb 2018 My Price 6.00

strip of metallic scandium

A strip of metallic scandium, Sc, is placed in a beaker containing concentrated nitric acid. A brown gas rapidly forms, the scandium disappears, and the resulting liquid is brown-yellow but becomes colorless when warmed. These observations best support which of the following statements?

 

(A) Nitric acid is a strong acid.
(B) In solution scandium nitrate is yellow and scandium chloride is color less.
(C) Nitric acid reacts with metals to form hydrogen.
(D) Scandium reacts with nitric acid to form a brown gas.
(E) Scandium and nitric acid react in mole propor tions of 1 to 3.

Answers

Maurice Tutor
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Status NEW Posted 09 Feb 2018 11:02 PM My Price 6.00

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