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The compound sodium polymetaphosphate (N...

The compound sodium polymetaphosphate `(Na[Na_(4)(PO_(3))_(6)])` is called calgon because

A

It was developed by the scientist

B

It was developed first in California

C

It refers to calcium gone

D

It is based on the name of the company which developed it.

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### Step-by-Step Solution: 1. **Understanding the Compound**: The compound in question is sodium polymetaphosphate, represented as \( \text{Na}_n[\text{Na}_4(\text{PO}_3)_6] \). This compound is known as calgon. 2. **Identifying the Origin of the Name**: The term "calgon" is derived from "calcium gone". This indicates that the compound has a specific interaction with calcium ions. 3. **Function of Calgon**: Calgon, or sodium polymetaphosphate, is used to prevent the formation of unwanted salts. It does this by complexing with ambient calcium ions and other cations in water. 4. **Chemical Structure**: The structure of calgon consists of a repeating unit of sodium hexametaphosphate, which includes phosphorus and oxygen atoms. The sodium ions are associated with the negatively charged oxygen atoms. 5. **Conclusion**: The correct answer to the question is that sodium polymetaphosphate is called calgon because it refers to "calcium gone", indicating its role in preventing calcium-related issues in water. ### Final Answer: The compound sodium polymetaphosphate is called calgon because it refers to "calcium gone". ---
### Step-by-Step Solution: 1. **Understanding the Compound**: The compound in question is sodium polymetaphosphate, represented as \( \text{Na}_n[\text{Na}_4(\text{PO}_3)_6] \). This compound is known as calgon. 2. **Identifying the Origin of the Name**: The term "calgon" is derived from "calcium gone". This indicates that the compound has a specific interaction with calcium ions. 3. **Function of Calgon**: Calgon, or sodium polymetaphosphate, is used to prevent the formation of unwanted salts. It does this by complexing with ambient calcium ions and other cations in water. ...
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