What is the mass in grams of a single formula unit of copper(I) sulfide,Cu2S?
A) 1.04 x 10-26 g
B) 1.66 x 10-24 g
C) 2.64 x 10-22 g
D) 3.79 x 1021 g
E) 9.57 x 1025 g
Correct Answer:
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