Visualizing ConceptsThe (blowing picture represents an

Chapter , Problem 8E

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QUESTION:

The following picture represents an ion-exchange column, in which water containing "hard" ions, such as \(\mathrm{Ca}^{2+}\), is added to the top of the column, and water containing "soft" ions, such as \(\mathrm{Na}^{+}\), comes out the bottom. Explain what is happening in the column. [Section 18.4]

               

Equation transcription:

Text transcription:

{Ca}^{2+}

{Na}^{+}

Questions & Answers

QUESTION:

The following picture represents an ion-exchange column, in which water containing "hard" ions, such as \(\mathrm{Ca}^{2+}\), is added to the top of the column, and water containing "soft" ions, such as \(\mathrm{Na}^{+}\), comes out the bottom. Explain what is happening in the column. [Section 18.4]

               

Equation transcription:

Text transcription:

{Ca}^{2+}

{Na}^{+}

ANSWER:

Step 1 of 2

Hard water is water that will not easily form a lather with soap. Hardness in water is caused by the presence of  and  ions.

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