Naming Type IV (ACIDS)
Name____________________________________________Period______
This type of naming is used when a compound starts with a H.
With the exception of H2O (water) and H2O2 (hydrogen peroxide)
Chemical Formula: These are acids.
1. Always balance the charges so they add to equal zero. H+1 Y-3 3(+1) + 1(-3 )= 0
2. The number of each needed becomes the subscript. Don’t write 1’s. H3Y
Chemical Name:
1. If the acid is a binary acid – just two elements where one is an H, then name it
like this hydro(base name)ic acid.
2. If the acid is an oxy-acid, in other words a polyatomic and a hydrogen, then the hydrogen just indicates that this is an
acid and the naming comes from the polyatomic name.
If the polyatomic ion name ended in:
- ate then with a H the ending changes to -ic acid. (Think thanksgiving dinner – I ate too much and I got sick)
- ite then with a H the ending changes to - ous acid (Think fight takes two of us)
Positive ion
Negative ion
Chemical Formula
Chemical Name
Hydrochloric acid
H3PO4
Sulfurous acid
NO3
CO3
Your Turn! (Make sure to write in all the charges of all the ions!)
Positive Ion
1
2
3
4
5
6
7
8
9
10
Negative Ion
S
Chemical Formula
HF
Perchloric acid
H2SO4
NO3
H3PO3
Carbonic acid
Bromic acid
HNO2
SO3
11
HClO2
12
13
14
15
Chemical Name
chlorous acid
SO2
H3BO3
Hydroiodic acid
Positive Ion
Negative Ion
Chemical Formula
16
Hypochlorous acid
17
18
Chemical Name
HCN
S
19
Dichromic acid
20
Oxalic acid
21
H2SiO4
22
Permanganic acid
23
H2CrO4
24
Silicic acid
25
HNO2
26
Br
27
IO3
28
29
HIO2
[Fe(CN)6]3-
Ferrocyanic acid
30
Thiosulfuric acid
31
H2SeO4
32
Hydroiodic acid
33
C6H7O7-
Citric acid
34
C3H5O3-
Lactic acid
35
C7H5O2-
Benzoic acid
36
C7H5O3-
Salicylic acid
37
HCl
38
HBr
39
HI
40
HF