| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| chemical composition of oxygen | 0.02 | 0.8 | 7184 | 91 | 30 |
| chemical | 0.94 | 1 | 6713 | 93 | 8 |
| composition | 0.36 | 0.7 | 2896 | 83 | 11 |
| of | 1.85 | 0.2 | 8047 | 80 | 2 |
| oxygen | 1.17 | 0.4 | 7212 | 86 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| chemical composition of oxygen | 0.76 | 0.3 | 31 | 69 |
