6. Chemical Quantities & Aqueous Reactions

What is the oxidation state of chromium (Cr) in K2Cr2O7?

What is the bond order of the phosphorus-oxygen (P–O) bond in the phosphate ion, PO_4^{3-}?

What is the oxidation state of sulfur in the ion SO_4^{2-}?

Which of the following statements is false when referring to the oxidation state of carbon?

What is the sum of the oxidation numbers of all atoms in a neutral molecule of magnesium sulfate (MgSO_4)?

In the compound NH3, what is the oxidation number of nitrogen?

What is the oxidation state of carbon in Al2(CO3)3?

What is the effective nuclear charge (Z_{eff}) experienced by a valence electron in an oxygen atom?

What is the oxidation number of Mg in MgO?

In which of the following compounds does oxygen have an oxidation number other than -2?

What is the oxidation state of sulfur in the sulfate ion, SO_4^{2-}?

What is the oxidation state of an individual sulfur atom in MgSO4?

Determine the oxidation number of all the elements in the balanced redox reaction shown below.

What is the oxidation state of an individual nitrogen atom in NH4OH?