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Visualizing ConceptsThe (blowing picture represents an
Chapter , Problem 8E(choose chapter or problem)
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.