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Keith_Richards [23]
3 years ago
7

What happens when the threat of exposure to dirty air is reduced in a community?

Chemistry
2 answers:
viktelen [127]3 years ago
6 0

There is enough oxygen available for people's lungs to function normally

Explanation:

When the threat of exposure to dirty air is reduced in a community is reduced there will be enough oxygen available for people's lungs to function normally.

The main problem with dirty air is the absence or lack of oxygen in the atmosphere for people to breathe in calmly and easily.

  • Air pollution is the introduction of harmful substance into the atmosphere.
  • These pollutants makes breathing very difficult because other gases are concentrated in the air.
  • when air is purified through the halt in the processes that feeds the pollutants in, there is enough available oxygen to breathe in.

learn more:

Point source pollution brainly.com/question/11271230

#learnwithBrainly

ss7ja [257]3 years ago
6 0

Answer:

A.

Explanation:

I just took the test.

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The molar mass of gallium (Ga) is 69.72 g/mol.
Thepotemich [5.8K]

Answer:

2.35 x 10²⁰ atoms Ga

Explanation:

After converting from mg to g, use the molar mass as the unit converter to convert to moles. Then using Avogadro's number, 6.022 x 10²³ convert from moles to atoms of Ga.

27.2mgGa*\frac{1g}{1000mg} *\frac{1 mol Ga}{69.72gGa} *\frac{6.022*10^2^3 atoms Ga}{1 molGa} = 2.349 * 10^2^0 atoms Ga

Then round to 3 significant figures = 2.35 x 10²⁰ atoms Ga.

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Alja [10]

For this question, suppose the pressure is remained constant, we can use the Charles law to find the answer.


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