Question

Answer the following
1) Describe how salt is obtained from sea water

2) How can you separate the following
a) sand and salt
b) butter from milk​

Answer 1

Answer:

1.Sea salt is salt that is produced by the evaporation of seawater. It is used as a seasoning in foods, cooking, cosmetics and for preserving food. It is also called bay salt, solar salt, or salt. Like mined rock salt, production of sea salt has been dated to prehistoric times.

2.When sand is added to water it either hangs in the water or forms a layer at the bottom of the container. Sand therefore does not dissolve in water and is insoluble. It is easy to separate sand and water by filtering the mixture. Salt can be separated from a solution through evaporation.

3.centrifugation

Which process is used to separate butter from milk? The process used to separate butter, curd, or cream from milk is churning or centrifugation. Centrifugation is a method for separating the suspended particles of a substance from a liquid in which the mixture is rotated at a high speed in a centrifuge machine.