| Answer | % Correct |
|---|---|
| Helium | 88%
|
| Oxygen | 85%
|
| Carbon dioxide | 84%
|
| Nitrogen | 84%
|
| Carbon monoxide | 80%
|
| Hydrogen | 80%
|
| Methane | 79%
|
| Argon | 78%
|
| Ozone | 76%
|
| Propane | 74%
|
| Xenon | 74%
|
| Nitrous oxide | 73%
|
| Butane | 71%
|
| Neon | 70%
|
| Radon | 66%
|
| Nitric oxide | 64%
|
| Chlorine | 63%
|
| Hydrogen sulfide | 58%
|
| Sulfur hexafluoride | 56%
|
| Krypton | 55%
|
| Ammonia | 46%
|
| Arsine | 25%
|