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xenn [34]
2 years ago
15

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

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

Answer: Carbon dioxide

Explanation:

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b it is easy its b

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Organize the following list of atoms from lowest to highest Electronegativity:
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Answer:

Barium<Strontium<Calcium <Magnesium< Beryllium

Explanation:

Electronegativity is defined as the ability of an atom in a bond to attract the shared electrons of the bond towards itself.

Electronegativity is a periodic trend that decreases down the group and increases across the period.

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Barium<Strontium<Calcium <Magnesium< Beryllium

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Which part of the atom cannot have its location accurately determined and is modeled by a cloud around the center of the atom? A
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