I think that it is 1.5 mole it might not be
I believe it is c electrons fill orbitals in order of increasing orbital energy
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Answer:
SO42 - Trigonal planar ion
Explanation:
The SO4^2- ion is tetrahedral and not trigonal planar because the sulphur atom has four regions of electron density which includes the lone pair of electrons on sulphur atom.
This accounts for the observed tetrahedral arrangement of electron pairs around the central sulphur atom in SO4^2- ion, hence the answer.
Answer:
to protect peoples teeth against cavities
Explanation:
i just know
