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Elena-2011 [213]
3 years ago
9

On average, one chlorine atom can destroy 100,000 ozone molecules. Such destructive power is tremendous when it is related to th

e millions of tons of CFCs that had been produced up until that time. When Rowland and Molina calculated the likely effect on the ozone layer, they could not believe their figures. They consulted another scientist Hal Johnson who confirmed their results. In 1974, Rowland and Molina published their predictions about ozone depletion in the scientific journal Nature. Although the United States was quick to ban the production of CFCs, many other countries including Britain, China, France and Japan did not. Look at the ozone depletion images from 1979-1994. These images show the amounts of ozone in the atmosphere above Antarctica in October. The colors indicate the relative amounts of ozone present. The “red” color indicates the highest amounts and the “purple” indicates the smallest amounts. In 1994, the “ozone hole” showed to have a loss of 65% of its original ozone amounts. Using the images collected on the site, describe the trends you see over time in the strength of the ozone coverage.

Chemistry
2 answers:
Tcecarenko [31]3 years ago
8 0

i would say i dont know

Georgia [21]3 years ago
7 0
There would be no more because everything had decrease to 0
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Explain why it is necessary to balance chemical equations in terms of maintaining equilibrium. How can you tell when a chemical
LUCKY_DIMON [66]

Answer:

See explanation.

Explanation:

Hello,

In this case, we say that chemical reactions are governed by the law of conservation of mass, which states that matter cannot be neither created nor destroyed by transformed, for that reason, we need to balance chemical reactions in order to ensure all the atoms to be in the same quantity at both reactants and products.

Moreover, equilibrium is defined as such condition at which the concentration of both reactants and products stop changing over the time so they become constant as well as their null reaction rate.

A widely acknowledged reaction is the HABER one which consists on the synthesis of ammonia by using elemental nitrogen and hydrogen:

N_2(g)+3H_2(g)\rightleftharpoons 2NH_3(g)

In such reaction, we have two nitrogens at both reatants and products and six hydrogens at at both reatants and products for us to obey the law of conservation of mass. Furthermore, as the time goes by, nitrogen reacts with hydrogen, nonetheless, they do not react indefinitely, they have a limit that is equilibrium, so their moles stop being consumed and remain unchanged as well as the produced moles of ammonia.

Best regards.

7 0
3 years ago
The combustion of gasoline produces carbon dioxide and water. Assume gasoline to be pure octane (C8H18) and calculate the mass (
Mnenie [13.5K]

Answer:

3.1 kg

Explanation:

Step 1: Write the balanced combustion equation

C₈H₁₈ + 12.5 O₂ ⇒ 8 CO₂ + 9 H₂O

Step 2: Calculate the moles corresponding to 1.0 kg of C₈H₁₈.

The molar mass of C₈H₁₈ is 114.23 g/mol.

1.0 × 10³ g × 1 mol/114.23 g = 8.8 mol

Step 3: Calculate the moles of CO₂ produced from 8.8 moles of C₈H₁₈

The molar ratio of C₈H₁₈ to CO₂ is 1:8. The moles of CO₂ produced are 8/1 × 8.8 mol = 70 mol.

Step 4: Calculate the mass corresponding to 70 moles of CO₂

The molar mass of CO₂ is 44.01 g/mol.

70 mol × 44.01 g/mol = 3.1 × 10³ g = 3.1 kg

5 0
3 years ago
What is the speed of a wave with a wavelength of 3 m and a frequency of .1hz?
Ivahew [28]

Answer:

0.671081 mps

Explanation:

.....................

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3 years ago
An ionic bond can be formed when one or more electrons are 1) equally shared by two atoms 2) unequally shared by two atoms 3) tr
Lyrx [107]

Answer:

4) transferred from the valence shell of one atom to the valence shell of another atom

Explanation:

Electrons are located outside of the nucleus which contains the protons and the neutrons.

For bonds to form, valence electrons located in the outermost shell electrons are involved. These are the valence electrons. These outer shell electrons can be shared or transferred between two combining atoms to form stable atoms.

In ionic bonds, the electrons are transferred from one specie to another. The atom that loses the electrons becomes positively charged and the receiving atom becomes negatively charged. This is the crux of ionic bonds.

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A teardrop-shaped hill that points the direction a glacier has flowed is a:
mote1985 [20]
The answer is A Drumlin

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