| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| oxidation number of hno3 | 0.16 | 0.5 | 320 | 29 | 24 |
| oxidation | 0.68 | 0.2 | 1479 | 99 | 9 |
| number | 1.68 | 0.9 | 601 | 28 | 6 |
| of | 1.08 | 0.9 | 7329 | 96 | 2 |
| hno3 | 1.11 | 0.3 | 1900 | 52 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| oxidation number of hno3 | 1.35 | 0.2 | 1699 | 91 |
