The most abundant molecule in molecular clouds is
A)H₂.
B)He₂.
C)CO.
D)H₂O.
E)HHe.

Name: The most abundant molecule in molecular clouds is A)H₂. B)He₂. C)CO. D)H₂O. E)HHe.
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Question

Quizplus · Accepted Answer

H₂ (molecular hydrogen) is the most abundant molecule in molecular clouds, making up the vast majority of the mass of these clouds. This is because hydrogen is the most abundant element in the universe, and in the cold, dense conditions of molecular clouds, it pairs up to form molecular hydrogen.

The Most Abundant Molecule in Molecular Clouds Is