Carbon Dioxide and Its Uses

Carbon Dioxide and Its Uses

Carbon dioxide is a colourless, odourless gas that plays a central role in respiration, photosynthesis, and the carbon cycle. Beyond its natural functions, it has a wide range of practical uses — from fire extinguishers…

• Carbon dioxide ($\text{CO}_2$) is a colourless, odourless gas.
• It makes up about 0.03%–0.04% of air.
• $\text{CO}_2$ is slightly heavier than air.

~15 min · full explanation, examples & memory tricks in the app