3 years ago

What are the names of the elements which are gases in the air

2 answers:

6 0

The molecules of two different elements, nitrogen and oxygen, make up about 99 percent of the air.

have a good day !! :)

jolli1 [7]3 years ago

3 0

Oxygen
nitrogen
carbon dioxide

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ivolga24 [154]

B .pure water it’s made up of oxygen and hydrogen “H2O”

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Fed [463]

Answer:

atomic number equals to 1
Protons equals to 1
number of neutrons equals to 0
number of electrons equals to 0 because the plus sign means that it loses an electron
mass number equals to 1

atomic number 17
number of protons 17
number of neutrons 18
number for electrons 18 Because negative sign means It's an anion which means it gains an electron
mass number 35

there u go

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vodomira [7]

Answer:

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LUCKY_DIMON [66]

Answer and Explanation:

I think the thing that is wrong with this chemical equation is that there is 0 by the 2 instead of the letter O.

Other than that, everything would be balanced.

#teamtrees #PAW (Plant And Water)

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Tasya [4]

its B i know its is denfkrnkvjf, njbc

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