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boyakko [2]
3 years ago
15

What is the name of Se2Cl7?

Chemistry
1 answer:
Monica [59]3 years ago
4 0

Answer:

diselenium heptachloride

Explanation:

Se2Cl7

Se = selenium

Cl = chlorine

Don't forget the "-ide"

Diselenium heptachloride

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How many moles of copper (Cu) are in 65.8 g Cu?
Veseljchak [2.6K]
<h2><u>Answer:</u></h2>

The correct answer is A) 1.04 mol Cu

{65.8 g     /   63.55 g/mol}

= 1.04 mol Cu

Explanation:

In  63.55  g  of copper metal there are  1 m o l  of  C u  atoms. By dividing the mass of Cu and molar mass, we can easily get the number of moles.


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alekssr [168]
Answer:
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Explanation:
One mole of any substance contains Avogadro's number (6.022 * 10^23) of atoms. 
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number of moles = (3.85 * 10^24 *1) / (6.022 * 10^23)
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Hope this helps :)
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