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Alina [70]
3 years ago
5

Please answer!

Chemistry
1 answer:
evablogger [386]3 years ago
5 0
1.) A compound is a substance that originates from two or more separate elements. It shares some similarities with a mixture.

2.) A compound has quite different properties from which it was formed. It also cannot be separated easily. Compounds are formed by chemical reactions.

3.) A pure substance has a constant composition and has consistent properties. It can be a compound or an element, but its composition is constant.

Hope this helps. :)
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Determine the number of valence electrons in pcl₃ and then draw the corresponding lewis structure.
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The number of valence electrons in PCl_{5} will be 26.

The atom's outermost inhabited shell is where valence electrons are found. They are significant because they have a major impact on how an atom's chemical characteristics are determined.

The number of valence electron in P in 5 and number of valence electron in Cl is 7. There are one molecule of P and three molecule of Cl in  PCl_{5}  molecule. By adding all valence electrons , the total number of valance electrons will be 26.

The Lewis structure of  PCl_{5}  is shown as:

Therefore, the number of valence electrons in PCl_{5} will be 26.

To know more about valence electrons

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