Chem 125 Final

Front 1

Cations are Lewis _______. Lewis acid strength of alkali, post-transition, transition, and alkaline earth elements. As period number decreases within a family, acit strength of cation ________.

Back 1

Acids. Post-transition > transition > alkaline earth > alkali. Increases.

Front 2

Lewis acids are electron pair __________. Lewis bases are electron pair ______. Lewis bases are also called ________. What group of cation's will ONLY react with NH3? What group of cations will ONLY react with OH-?

Back 2

Seekers, Donors. Ligands. Transition metals. Post-transition elements.

Front 3

When cations react with NH3, the product [M(NH3)x]^x+ is always _______ and ________.

Back 3

Charged, soluble.

Front 4

When cations react with OH-, the cation product's alters in _______ and ________.

Back 4

Charge, solubility.

Front 5

Cation in family 1, example [Na(HOH)6]2+ does what when OH- is added? What is resulting formula?

Back 5

No reaction, nothing.

Front 6

Cation in family 2, example [Ca(HOH)6]2+ does what when OH- is added? What is resulting formula?

Back 6

ppt. [Ca(HOH)4(OH)2]
OR
no change [M(HOH)5(OH)]+

Front 7

Cation in transition element group, example [Co(HOH)6]2+ does what when OH- is added? What is resulting formula?

Back 7

solution solor change
[Co(HOH)5(OH)]+
OR
ppt.
[CO(HOH)4(OH)2]

Front 8

Cation in post-transition group, example [Pb(HOH)4]2+ does what when OH- is added? What is the resulting formula?

Back 8

ppt. forms
[Pb(HOH)2(OH)2]
AND
dissolves
[Pb(OH)4]2-

Front 9

When OH- or NH3 is added to a cation in family 2, what will happen?

Back 9

They will not react extensively with OH- or NH3 because the cations are weak Lewis acids.

Front 10

When OH- or NH3 is added to a cation in the transition metals family, what will happen?

Back 10

ppts. will dissolve in NH3.

some dissolve in NaOH.

Front 11

When OH- or NH3 is added to a cation in the post-transition metal family, what will happen?

Back 11

ppts. dissolve in OH-.

ppts. do NOT dissolve in NH3.