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soldier1979 [14.2K]
3 years ago
5

2.When copper (II) nitrate reacts with sodium hydroxide, copper (11) hydroxide is produced.

Chemistry
1 answer:
Ann [662]3 years ago
7 0

Answer:

 

2Cu + S ~~~> Cu2S Copper (C) reacts with sulfur (S) to form copper sulfide as shown in the equation. A scientist adds 12.7 grams of Cu to 3.2 grams of S to start the reaction.

Explanation:

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If you dilute a solution what is the only thing about the solution that does NOT change?
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Taking into account the definition of dilution, moles of solute (option C) is the only thing about the solution that does NOT change.

<h3>Dilution</h3>

When it is desired to prepare a less concentrated solution from a more concentrated one, it is called dilution.

Dilution is the process of reducing the concentration of solute in solution, which is accomplished by simply adding more solvent to the solution at the same amount of solute.

In a dilution the amount of solute does not change, but as more solvent is added, the concentration of the solute decreases, as the volume (and weight) of the solution increases.

A dilution is mathematically expressed as:

Ci×Vi = Cf×Vf

where

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  • Vi: initial volume
  • Cf: final concentration
  • Vf: final volume

<h3>Summary</h3>

In summary, moles of solute (option C) is the only thing about the solution that does NOT change.

Learn more about dilution:

brainly.com/question/6692004

brainly.com/question/16343005

brainly.com/question/24709069

#SPJ1

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