Are the following statements true? 🌬️

🇫🇷 French Version

1. Dry air is a mixture 🧪.

2. Dry air only contains dioxygen (O2) 🫧.

3. Air mainly contains carbon dioxide (CO2) 🌫️.

4. There is as much dioxygen (O2) 🫧 as dinitrogen (N2) in dry air.

5. Air contains about 80 % dinitrogen (N2) and 20 % dioxygen (O2).

6. To prepare 10 L of air, you need 2 L dinitrogen (N2) and 8 L dioxygen (O2).

7. In the presence of carbon dioxide (CO2), limewater 🧪 becomes cloudy.

📊 RESULT:

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