Which formula represents a nonpolar molecule that contains polar covalent bonds? a. H2S
b. CO2
c. CaCl2
d. SO2

the mass of the cathode increases because ions from the solution get reduced to atoms and become part of the cathode.

explanation:

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stan bts

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

it is the most commonly accepted one