The answer to this question is C) ALO2
A(C)+A(F)+A(Br)+A(O)=12.01+19.00+79.90+16.00=126.91
n=381.01/126.91= 3
C₃F₃Br₃O₃
Solid to Gas is Sublimation. Gas to Solid is Deposition.
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Explanation: