Question

Write a formula for each of the following compounds: (a) silicon dioxide (b) silicon tetraiodide (c) silane (d) silicon carbide (e) magnesium silicide

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a) The given compound is silicon dioxide. Silicon has an oxidation number of +4, while oxygen has an oxidation number of -2. Therefore, two oxygen is needed to bring the overall charge of the compound equal to zero. Thus, the chemical formula for the compound is SiO2\text{SiO}_{2}.

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