Seudónimo
Seudónimo
30-04-2022
Chemistry
contestada
What is the percentage of oxygen in air?
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helahqaderi1234
helahqaderi1234
30-04-2022
21% becuase air is mostly gas.
It’s a mixture of different gases. The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.
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