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tekilochka [14]
3 years ago
5

3. The air today is approximately one-fifth

Chemistry
1 answer:
Darina [25.2K]3 years ago
8 0

Answer: 40cm^3

Explanation:

Since the The air today is approximately one-fifth oxygen, the approximate volume of oxygen in 200cm3 of air would be:

= 1/5 × 200

= 40cm

The answer is 40cm^3

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