The molecular mass of a compound X(NO₃) 3 is 213. The atomic mass of X is ________, which is ________.
A) 27; Al
B) 51; V
C) 56; Fe
D) 59; Co
Correct Answer:
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Q1: Alkynes have the general molecular formula CnH₂n-2.
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Q7: Which of the following has the least
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Q9: Which of the following quantities does not
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