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Mathematics 7 Online
OpenStudy (anonymous):

How do chemists know that an oxygen molecule has unpaired electrons?

OpenStudy (anonymous):

Liquid oxygen is paramagnetic, it sticks between the poles of a magnet. Paramagnetism is the attraction to an magnetic field and paramagnetism is associated with one or more unpaired electrons.

OpenStudy (anonymous):

Is that really the answer?

OpenStudy (anonymous):

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