cueFlash

Glossary of Chem 125 Final

Start Studying! Add Cards ↓

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 ________.
Acids. Post-transition > transition > alkaline earth > alkali. Increases.
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-?
Seekers, Donors. Ligands. Transition metals. Post-transition elements.
When cations react with NH3, the product [M(NH3)x]^x+ is always _______ and ________.
Charged, soluble.
When cations react with OH-, the cation product's alters in _______ and ________.
Charge, solubility.
Cation in family 1, example [Na(HOH)6]2+ does what when OH- is added? What is resulting formula?
No reaction, nothing.
Cation in family 2, example [Ca(HOH)6]2+ does what when OH- is added? What is resulting formula?
ppt. [Ca(HOH)4(OH)2]
OR
no change [M(HOH)5(OH)]+
Cation in transition element group, example [Co(HOH)6]2+ does what when OH- is added? What is resulting formula?
solution solor change
[Co(HOH)5(OH)]+
OR
ppt.
[CO(HOH)4(OH)2]
Cation in post-transition group, example [Pb(HOH)4]2+ does what when OH- is added? What is the resulting formula?
ppt. forms
[Pb(HOH)2(OH)2]
AND
dissolves
[Pb(OH)4]2-
When OH- or NH3 is added to a cation in family 2, what will happen?
They will not react extensively with OH- or NH3 because the cations are weak Lewis acids.
When OH- or NH3 is added to a cation in the transition metals family, what will happen?
ppts. will dissolve in NH3.

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

ppts. do NOT dissolve in NH3.

Add Cards

You must Login or Register to add cards