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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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How many moles of iron are needed to produce 10 moles of Fe2O3
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Answer:

20 moles of Iron are needed

Explanation:

In 1 mole of Iron (III) oxide, Fe₂O₃, there are 2 moles of Iron, Fe. The equation that we can write is:

2 moles Fe = 1 mole Fe₂O₃

To find the moles of iron that are needed to produce 10 moles of Fe₂O₃ we must use this equation as follows:

10 moles of Fe₂O₃ * (2 moles Fe / 1mole Fe₂O₃) =

<h3>20 moles of Iron are needed</h3>
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In the absence of other information, you can predict that an organic molecule with the empirical formula of c12h24o12 is a_____.
Rzqust [24]

The empirical formula of c12h24o12 is a carbohydrate.

<h3>Carbohydrate</h3>

A carbohydrate is a biomolecule made up of carbon (C), hydrogen (H), and oxygen (O) atoms, often with a hydrogen-oxygen atom ratio of 2:1 (as in water), and so having the empirical formula Cm(H2O)n (where m may or may not be different from n). All molecules that meet this exact stoichiometric criterion are not, however, automatically categorized as being carbohydrates.

The term is most frequently used in biochemistry, where it is used as a synonym for saccharide, a class of compounds that includes sugars, starches, and cellulose. The four chemical categories of saccharides are monosaccharides, disaccharides, oligosaccharides, and polysaccharides. The smallest carbohydrates, monosaccharides and disaccharides, are sometimes referred to as sugars.

Learn more about carbohydrate here:

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