What is the chemical formula for tin(IV) sulfide?

The chemical formula for tin(IV) sulfide is SnS2. This can be understood by breaking down the components of the name. Tin in the formula represents the metal element with the oxidation state of +4, which is indicated by the Roman numeral IV. Sulfide refers to the sulfide ion, which has an oxidation state of -2.

In order to determine the correct chemical formula, we need to balance the charges of the tin and sulfide ions. Since tin has a +4 charge and each sulfide ion has a -2 charge, we need two sulfide ions to balance the +4 charge from one tin ion:

1 tin ion (+4) + 2 sulfide ions (2 x -2 = -4) equals a neutral compound.

Thus, the formula is correctly represented as SnS2, indicating that one tin ion combines with two sulfide ions to create tin(IV) sulfide.

Other choices are incorrect because they do not reflect the required stoichiometry that results in a neutral compound formed from tin and sulfide ions.