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Chemistry

Answered

Which of the following BEST represents 3.0 moles of an element?
Elimination Tool
Select one answer
А
2.02 grams of H
B
14 grams of N
C
4 grams of He
D
27 grams of Be

Answer :

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Answer: 27 grams of Be

Explanation: Berylium has a molar mass of 9.0 grams/mole

(9.0 grams/mole)*(3 moles Be) = 27 grams Be

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