Science, asked by deladela17678, 4 months ago

if u don't know just shutup or else I will report u ​

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Answered by risheek6999
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Answer:

1. *oxygen* is called as vital life

2. Nitrogen is *lighter* than air

3. *Nitrogen* is used as a fertilizer

4. Dry ice is used as a *cooling agent*

5. the process of conversion of iron hydrated form of oxides is called *oxygen*

Explanation:

1. Oxygen helps organisms grow, reproduce, and turn food into energy.

2.The molecular weight of a gas is typically equal to its density. Because air has an average molecular weight of roughly 29 g/mol, any gas with a higher molecular weight will be denser than air.

3. Nitrogen is critical to plant growth and reproduction.

4. Dry ice is used for refrigeration of food because: It does not melt into a liquid when heated instead, it sublimes into its gaseous state. Due to its extreme cooling effect, it is used as a cooling agent.

5. Slow oxidation of iron in presence of air and moisture with formation of hydrated iron oxide is called rusting.

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