Question

part a
sno₂
spell out the full name of the compound.

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part b
hg₂i₂
spell out the full name of the compound.

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part c
crf₂
spell out the full name of the compound.

Explanation:

For SnO₂, Sn is tin and O is oxygen, with tin having a +4 oxidation - state here, so it's tin(IV) oxide. For Hg₂I₂, Hg is mercury and I is iodine. Mercury has a +1 oxidation - state in this compound, so it's mercury(I) iodide. For CrF₂, Cr is chromium and F is fluorine, with chromium having a +2 oxidation - state, so it's chromium(II) fluoride.

Answer:

Part A: tin(IV) oxide
Part B: mercury(I) iodide
Part C: chromium(II) fluoride