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swat32
3 years ago
9

Brainiest and 10 Points Which has a HIGHER frequency? A. Visible B. Ultraviolet

Chemistry
1 answer:
katrin [286]3 years ago
4 0

Answer:

B. Ultraviolet

Explanation:

UV has a higher frequency and shorter wavelength than visible light

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The following reaction plays a key role in the destruction of ozone In the atmosphere:
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Answer:

19.91 J/K

Explanation:

The entropy is a measure of the randomness of the system, and it intends to increase in nature, thus for a spontaneous reaction ΔS > 0.

The entropy variation can be found by:

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S°, O2(g) = 205.138 J/mol.K

So:

ΔS = (1*205.138 + 1*218.9) - (1*165.20 + 1*238.93)

ΔS = 19.91 J/K

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4 0
3 years ago
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What is the number of moles of Sodium Chloride (NaCl) that is present in 29.22g sample of it?
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There are 0.5 moles of NaCl present in a 29.22g sample.

to find moles of a compound you would look at the periodic table to find the mass. in this case, the mass of NaCl is 58.44 g/mol. now, you divide the sample mass of 29.22g by 58.44 g/mol. the grams will cancel each other out and you’re left with 0.5 mol in that sample

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4 0
3 years ago
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