6. Chemical Quantities & Aqueous Reactions

What is the oxidation state of manganese (Mn) in Mn(ClO4)3?

What is the average oxidation number of sulfur in sodium thiosulfate, $N_a{2}_{}{S}_2{O}_3$?

What is the oxidation number of magnesium in the compound MgCl_2?

What is the oxidation number of each oxygen atom in an O2 molecule?

Which of the following compounds contains phosphorus (P) with an oxidation number of -3?

In the compound NH3, what must nitrogen's oxidation state be?

In which one of the following molecules does sulfur have the smallest oxidation number?

Given the complex ion [Fe(CN)_6]^{4-}, what is the oxidation number of iron (Fe) in the complex?

What is the oxidation state of phosphorus (P) in the ion PO_3^{3-}?

What is the oxidation state of an individual sulfur atom in BaSO_4?

What is the oxidation number of oxygen in most compounds?

In an oxidation-reduction (redox) reaction, what does an atom gain or lose to change its oxidation number?

In which of the following compounds does nitrogen have an oxidation number of -3?

What is the oxidation state of chromium in K2Cr2O7?

What is the oxidation number of sulfur (S) in the compound Na2SO4?