2 years ago

Why is the mesosphere colder than the troposphere

1 answer:

3 0

The mesosphere is the coldest of the atmospheric layers. In fact it is colder than the Polar regions of the Earth cold enough to freeze water vapor into ice clouds. As you increase in altitude, temperature decreases The thermosphere is the layer to which this pattern does not apply.

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PLEASE HELPPPP How would life on earth be different if it axis were not tilted which respect to its orbit

olga2289 [7]

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3 years ago

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Part C<br> Number of molecules in 8.437x10-2 mol C6H6

N76 [4]

Answer:

There are $5.08\times 10^{22}\ \text{molecules of}\ C_6H_6$

Explanation:

In this problem, we need to find the number of molecules in $8.437\times 10^{-2}$ mol of $C_6H_6$ .

The molar mass of $C_6H_6$ is $6\times 12+1\times 6=78\ g/mol$

No of moles = mass/molar mass

We can find mass from above formula.

$m=n\times M\\\\m=8.437\times 10^{-2}\ mol\times 78\ g/mol\\\\m=6.58\ g$

Also,

No of moles = no of molecules/Avogadro number

$N=n\times N_A\\\\N=8.437\times 10^{-2}\times 6.023\times 10^{23}\\\\N=5.08\times 10^{22}\ \text{molecules}$

Hence, there are $5.08\times 10^{22}\ \text{molecules of}\ C_6H_6$

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2 years ago

A joule is a unit of _____. A. force B. work only C. energy only D. work or energy

seropon [69]

I would personally say C. Energy only...

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Define the term valence electron and explain how to find the number of valence electrons in family one and family 2.

goblinko [34]

Valence Electron is the outermost electrons, family(Alkali) 1 has 1 valence electrons and family(Alkaline) 2 has 2 valence electrons.

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3 years ago

In what ways might a company that uses a strong acid handle an acid spill on the factory floor

In-s [12.5K]

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