Polyatomic Ions Flashcards
1
Q
What is the formula for a hydrogen ion?
A
OH-
2
Q
OH-
A
Hydrogen / Hydroxide
3
Q
What are the formulas for the nitrogen ions?
A
- NH4+
- NO3-
- NO2-
4
Q
Ammonium
A
NH4+
5
Q
NH4+
A
Ammonium
6
Q
Nitrate
A
NO3-
7
Q
NO3-
A
Nitrate
8
Q
Nitrite
A
NO2-
9
Q
NO2-
A
Nitrite
10
Q
What are the formulas for the chlorine ions?
A
- ClO4-
- ClO3-
- ClO2-
- ClO-
11
Q
Perchlorate
A
ClO4-
12
Q
ClO4-
A
Perchlorate
13
Q
Chlorate
A
ClO3-
14
Q
ClO3-
A
Chlorate
15
Q
Chlorite
A
ClO2-
16
Q
ClO2-
A
Chlorite
17
Q
Hypochlorite
A
ClO-
18
Q
What are the formulas for the carbon ions?
A
- CO3^2-
- HCO3-
3.CN- - C2 H3 O2-
19
Q
Carbonate
A
CO3^2-
20
Q
CO3^2-
A
Carbonate
21
Q
Hydrogen Carbonate (Bi-carbonate)
A
HCO3-
22
Q
HCO3-
A
Hydrogen Carbonate (Bi-carbonate)
23
Q
Cyanide
A
CN-
24
Q
CN-
A
Cyanide
25
Acetate
C2 H3 O2-
26
C2 H3 O2-
Acetate
27
What are the formulas for the sulfur ions?
1. SO4^2-
2. HSO4-
3.SO3^2-
4. HSO3-
28
Sulfate
SO4^2-
29
SO4^2-
Sulfate
30
Hydrogen Sulfate (Bi-Sulfate)
HSO4-
31
HSO4-
Hydrogen Sulfate (Bi-Sulfate)
32
Sulfite
SO3^2-
33
SO3^2-
Sulfite
34
Hydrogen Sulfite (Bi-Sulfite)
HSO3-
35
HSO3-
Hydrogen Sulfite (Bi-Sulfite)
36
What are the formulas for the phosphorus ions?
1. PO4^3-
2. HPO4^2-
3.H2 PO4 -
4. PO3^3-
37
Phosphate
PO4^3-
38
PO4^3-
Phosphate
39
Hydrogen phosphate
HPO4^2-
40
HPO4^2-
Hydrogen Phosphate
41
Di hydrogen Phosphate
H2 PO4 -
42
H2 PO4 -
Di hydrogen Phosphate
43
Phosphite
PO3^3-
44
PO3^3-
Phosphite
45
Polyatomic Ions
Groups of ions with an overall charge that behaves as one unit.
46
How do you complete the criss cross method for writing an ionic compound formula?
1. Write the charges on both elements.
2. Switch the numbers.
3. Divide the numbers by 2.
4. Write the new formula.
47
Are polyatomic ions usually metals or nonmetals?
Nonmetals
48
What charges do polyatomic ions usually have?
1-, 2-, 3-
49
What is the one polyatomic ion that does not have a negative charge?
Ammonium (NH4+)
50
What do the most common polyatomic ions end in?
-ate
51
What do the polyatomic ions that have one less oxygen end in?
-ite
52
What two ions are the exceptions to the polyatomic ion rules?
1. Cyanide (CN-)
2. Hydroxide (OH-)
53
When you add a H+ to a polyatomic ion, what do you add to its charge?
1+
