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Bogdan [553]
3 years ago
12

The purging of impurities from a compound by crystallization:

Chemistry
2 answers:
Nuetrik [128]3 years ago
5 0
C.

This is also the only change by which crystals may be produced.
Ne4ueva [31]3 years ago
3 0
<h3><u>Answer;</u></h3>

occurs after the liquid melt cools back to a solid

The purging of impurities from a compound by crystallization <u>occurs after the liquid melt cools back to a solid.</u>

<h3><u>Explanation;</u></h3>
  • <em><u>Purging of impurities from a compound by crystallization is done through a method known as melt crystallization. Melt crystallization is a type of cooling crystallization process which is operated close to the melting point of the pure compound.</u></em>
  • The sample for melt crystallization id normally an impure compound. When the impure sample is cooled below the equilibrium temperature the result is formation of a solid phase which is more pure that the initial compound, while the impurities remain in the impure sample.
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Answer:

This question is incomplete, it should read 3x² - 10x + 8. The answer is (3x-4) (x-2).

Please find the solved explanation to this question attached

Explanation:

To factorize means to write an expression as a product of its factors using brackets. It is the opposite of expanding an algebraic expression i.e. it involves contracting it using factors common to the variables.

In this question, 3x² - 10x + 8 is given

For the sum, which is -10x, and product, which is 24x², -6x and -4x are the two variables whose sum will give rise to -10x and also whose product will give rise to 24x².

We have;

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