40. Решение задачи по химии №004 063

3) a) Determine the number of bonds in the NaBO2 molecule.
b) What is the geometric configuration of the SbH3 molecule (shown in the figure)?
c) In which of the given molecules MgI2, CaI2, SrI2, BaI2 the metal-iodine bond has the highest polarity? Why?
d) Determine the number of bonds in CH4, C2H4, C2H2 molecules.

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