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xenn [34]
3 years ago
15

What is the third most common gas found in the air we breath?

Chemistry
2 answers:
jok3333 [9.3K]3 years ago
6 0

Explanation: The most common gas people breathe from clean air is nitrogen. Air is a mixture of gases, and the air on Earth contains about 78 percent nitrogen and about 21 percent oxygen. Argon, carbon dioxide neon, helium, methane, krypton, hydrogen and xenon are in much smaller amounts.

Setler [38]3 years ago
6 0

Answer: Carbon dioxide

Explanation:

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The mass of 0.280 mole sample of sodium hydroxide NaOH​ is 11.2 grams.

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To know the mass in grams of 0.280 moles of sample of sodium hydroxide NaOH, you must know the molar mass of the compound, that is, the mass of one mole of a substance, which can be an element or a compound.

So you know:

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mass= 11.2 grams

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