91Ó°ÊÓ

Give the oxidation numbers of the metals in the following species: (a) \(\mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right],(\mathrm{b}) \mathrm{K}_{3}\left[\mathrm{Cr}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right],\) (c) \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}\).

Give the oxidation numbers of the metals in the following species: (a) \(\mathrm{Na}_{2} \mathrm{MoO}_{4},(\mathrm{~b}) \mathrm{MgWO}_{4},(\mathrm{c}) \mathrm{Fe}(\mathrm{CO})_{5}\)

What are the systematic names for the following ions and compounds? (a) \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\) (c) \(\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Br}_{2}\right]^{+}\) (b) \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}_{3}\right]\) (d) \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{3}\)

What are the systematic names for the following ions and compounds? (a) \(\left[\mathrm{cis}-\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]^{+}\) (b) \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{5} \mathrm{Cl}\right] \mathrm{Cl}_{3}\) (c) \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{5} \mathrm{Cl}\right] \mathrm{Cl}_{2}\)

Write the formulas for each of the following ions and compounds: (a) tetrahydroxozincate(II), (b) pentaaquachlorochromium(III) chloride, (c) tetrabromocuprate(II), (d) ethylenediaminetetraacetatoferrate(II).

Write the formulas for each of the following ions and compounds: (a) dichlorobis(ethylenediamine) chromium(III), (b) pentacarbonyliron(0), (c) potassium tetracyanocuprate(II), (d) tetraammineaquachlorocobalt(III) chloride.

Define the following terms: stereoisomers, geometric isomers, optical isomers, plane-polarized light.

Specify which of the following structures can exhibit geometric isomerism: (a) linear, (b) square planar, (c) tetrahedral, (d) octahedral.

What determines whether a molecule is chiral? How does a polarimeter measure the chirality of a molecule?

Explain the following terms: enantiomers, racemic mixtures.