| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what is the chemical makeup of oxygen | 0.45 | 0.3 | 1459 | 77 |
| chemical makeup of oxygen | 1.76 | 0.7 | 6016 | 87 |
| chemical composition of oxygen | 1.38 | 0.1 | 8733 | 3 |
| what is the chemical name of oxygen | 0.59 | 0.8 | 6484 | 75 |
| what is the chemical formula of oxygen | 1.65 | 0.3 | 621 | 84 |
| chemical form of oxygen | 1.39 | 0.5 | 1297 | 21 |
| chemical structure of oxygen | 1.24 | 0.8 | 2719 | 70 |
| what is oxygen made up of | 0.59 | 0.8 | 3736 | 26 |
| what is oxygen composed of | 1.81 | 0.6 | 313 | 72 |
| oxygen is made up of what elements | 1.27 | 0.1 | 2197 | 64 |
| chemical compound of oxygen | 1.73 | 0.3 | 4020 | 93 |
| what makes up an oxygen molecule | 0.45 | 0.4 | 2066 | 52 |
| what makes up oxygen | 0.23 | 0.2 | 9260 | 88 |
| what is oxygen in chemistry | 1.46 | 0.7 | 3161 | 47 |
| is oxygen a chemical | 0.57 | 0.3 | 3789 | 24 |
| what does oxygen consist of | 1.74 | 1 | 3694 | 49 |
| what molecules make up oxygen | 0.61 | 0.8 | 7052 | 53 |
| chemical properties for oxygen | 0.11 | 1 | 5819 | 70 |
