Ions and Compounds Flashcards
1
Q
Binary Ionic Compounds
A
When a cation has more than 1 possible charge, specify charge with Roman numerals (e.g., cobalt (II) chloride, copper (II) oxide, etc.).
2
Q
Polyatomic Ionic Compounds
A
NH4+ - Ammonium (the only cation) NO3- - Nitrate SO4-2 - Sulfate OH- - Hydroxide PO4-3 - Phosphate CO3-2 - Carbonate MnO4- - Permanganate CN- - Cyanide Cr2O7-2 - Dichromate CrO4-2 - Chromate S2O3-2 - Thiosulfate NO2- - Nitrite O2-2 - Peroxide
3
Q
Hydrofluoric Acid
A
HF
4
Q
Hydrochloric Acid
A
HCl
5
Q
Nitric Acid
A
HNO3
6
Q
Acetic Acid
A
CH3COOH
7
Q
Sulfuric Acid
A
H2SO4
8
Q
Phosphoric Acid
A
H3PO4
9
Q
Ammonia
A
NH3
10
Q
Cl, Br, and I are soluble*
A
*except when combined with Ag, Pb, Hg, and Cu
11
Q
SO4 is soluble*
A
*except when combined with heavy alkaline earths Ba, Pb, Sr, and Ca
12
Q
CO3, PO4, and S** insoluble
A
- except when combined with Group 1A and NH4
* *except when combined with Group 1A, Group 2A, and NH4
13
Q
Metal OH insoluble*
A
*except when combined with Group 1A and larger Group 2A
14
Q
All NO3 compounds are soluble
A
Always
15
Q
All Group 1A or NH4 are soluble
A
Always
