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NikAS [45]
3 years ago
12

Which human activity will most likely contribute to ozone layer destruction?

Chemistry
2 answers:
vagabundo [1.1K]3 years ago
5 0
  • Answer: <em><u>The compounds containing CFCs (chlorofluorocarbons) are mainly responsible for ozone layer depletion as these compounds react with ozone in the presence of ultraviolet rays to form oxygen molecule and thus, destroying ozone.</u></em>

Explanation: <em><u>Human activities cause the emission of halogen source gases that contain chlorine and bromine atoms. These emissions into the atmosphere ultimately lead to stratospheric ozone depletion. The source gases that contain only carbon, chlorine, and fluorine are called chlo- rofluorocarbons usually abbreviated as CFCs.</u></em>

mezya [45]3 years ago
3 0

Answer:

CFC gases and methane gases.

Explanation:

  • Chlorofluorocarbons from the air conditioners are one of the main culprits responsible for ozone layer depletion, that react with the airborne particles in the presence of Sun's radiation breaking the ozone into oxygen atoms and as result creating large ozone hole over the planet.
  • Emission of harmful toxic gases of carbon monoxide and dioxide into the air through the vehicular exhaust also creates an atmosphere full of atmospheric black cloud.
  • Apart from this the various organism taking up O2 release methane a natural gas which can modify and trap this heat content on the earth burning of polybags and tires fossil fuels and coal also release other harmful gases which are considered to be reactive with the atmosphere.
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Copper has two naturally occurring isotopes, ⁶³Cu (isotopic mass = 62.9296 amu) and ⁶⁵Cu (isotopic mass = 64.9278 amu). If coppe
Stells [14]

Copper has two naturally occurring isotopes, ⁶³Cu (isotopic mass = 62.9296 amu) and ⁶⁵Cu (isotopic mass = 64.9278 amu). If copper has an atomic mass of 63.546 amu,

Abundance of ⁶³Cu and ⁶⁵Cu ; 70% , 30.848%

<h3>Calculation : </h3>

Let the natural abundance of  63,  Cu isotope be x%.

The natural abundance of  

65

Cu isotope will be 100−x.

The average atomic weight is 63.546 g.

Hence, 100×63.546=63x+65(100−x)

6354.6=63x+6500−65x=6500−2x

2x=145.4

x=72.7≃70

Hence, the natural abundance of the  63Cu isotope must be approximately 70%.

For the ⁶⁵Cu calculation is same and the answer is 30.848%

<h3>What is isotope ?</h3>

Isotopes are members of a family of elements that all have the same number of protons and different numbers of neutrons. The number of protons in the nucleus determines the atomic number of an element on the periodic table.

Example : Magnesium has three natural isotopes : ²⁴Mg, ²⁵Mg, and ²⁶Mg.

<h3>What is Atomic mass ?</h3>

Atomic mass is the mass of an atom. The SI unit of mass is the kilogram, while atomic mass is often expressed in the non-SI unit dalton (synonymous with uniform atomic mass unit). 1 Da is defined as 1/12 the mass of a free carbon-12 atom at rest in the ground state.

To know more about Atomic mass please click here : brainly.com/question/338808

#SPJ4

3 0
1 year ago
Identify the formula of the precipitate formed when solutions of sodium perchlorate and nickel(II) nitrate are mixed. If no prec
kumpel [21]

Answer:

2NaClO₄ (aq) + Ni(NO₃)₂ (aq)  → 2NaNO₃ (aq) + Ni(ClO₄)₂ (aq)

No reaction

Explanation:

NaClO₄ → Sodium perchlorate

Ni(NO₃)₂ →  Nickel (II) nitrate

All the salts from nitrate are soluble salts

All the salts from perchlorate are soluble salts except for the KClO₄

5 0
2 years ago
Which element has the highest standard reduction potential? fluorine hydrogen lead lithium
Stolb23 [73]
I think the correct answer from the choices listed above is the first option. The element that has the highest standard reduction potential would be fluorine. Hope this answers the question. Have a nice day. Feel free to ask more questions.
3 0
3 years ago
Read 2 more answers
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Sholpan [36]

Answer:

D.

atomic modifier

Explanation:

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6 0
3 years ago
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P+O2 → P4O10
Assoli18 [71]
The answer is B, this is a synthesis reaction. A good way to identify a synthesis reaction is when there are multiple reactants, but only one product.
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3 years ago
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