Chemistry, asked by mdseraj0253, 19 days ago

What is polymer?

2.What is lubricant?

3.What is PH?

4. What is the unit of hardness? Write full

form of it.

5.What is the cause of hardness of water?
plz help me​

Answers

Answered by sayanikadutta28
0

Answer:

1. A substance which has a molecular structure built up chiefly or completely from a large number of similar units bonded together is called polymer.

2. A substance used for lubricating an engine or a component is called lubricant.

3. PH is a scale used to specify the acidic or basic of an aqueous solution.

4. The unit of hardness of water is calcium carbonate milligrams per litre.

5. The cause of hardness of water is due to presence of chemical salts and other minerals.

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