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3 years ago

How to separate nitrogen from a mixture of nitrogen and oxygen

Chemistry

2 answers:

blagie [28]3 years ago

8 0

the gases can be separated by fractional distillation of liquid air.

luda_lava [24]3 years ago

5 0

Explanation:

About 78 per cent of the air is nitrogen and 21 per cent is oxygen. These two gases can be separated by fractional distillation of liquid air.

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What substance is reduced in the reaction 2Fe 2+ + CI2 = 2Fe 3+ + 2CI- ?

atroni [7]

Answer:

$Cl_{2}$ is reduced in the reaction

Explanation:

The given reaction is

$2Fe^{2+}+Cl_{2} \to 2Fe^{3+}+2Cl^{-}$

The oxidation number of $Fe$ is changed from $+2\, \to \, +3$

$Fe^{2+} \to Fe^{3+}+e^{-}$

And The oxidation number of $Cl$ is changed from $0\, \to \, -1$

$Cl_{2}^{0} + 2e^{-} \to 2Cl^{-}$

Hence, $Fe^{2+}$ is oxidized and $Cl_{2}$ is reduced

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3 years ago

ddt, dde, pcbs and pbdes are all ________ddt, dde, pcbs and pbdes are all ________.a biodegradable and do not persist in the env

qwelly [4]

The answer is <span>non-biodegradable and subject to bioaccumulation and/or bioamplification.

DDT (dichlorodiphenyltrichloroethane) is persistent, non-degradable insecticide and organic pollutant readily accumulated to soils and consequently affects organisms.
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PBDEs (polybrominated diphenyl ethers) are non-degradable compounds very toxic to environment, even able to affect brains of animals in the development period.</span>

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3 years ago

i have a crossword thing that i got from school and one of the clues is: If there are two equal and opposite forces on something

cluponka [151]

I would assume the answer is called attractive

6 0

3 years ago

Read 2 more answers

What happens to the sound wave in echolocation?

Andrei [34K]

Answer: Reflected :)

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4 years ago

4. In the chemical equation H202(aq) → H2O(l) + O2(g), the O2 is a

Gala2k [10]

Answer:

02 is a product

Explanation:

it doesnt take part in chemical reaction so its not reactant.02 doesnt alter rate of chemical reaction so it cannot be catalyst. it is gas it is not solid so it is a product.

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3 years ago