The salt and water are a homogeneous mixture but when salt dissolves in the water system is called a solution of salt and water.
A mixture is defined as the combination of two or more substances that are not chemically bonded together.
There are two types of mixture which include:
When salt is added to the ice water system, it lowers the freezing point of the ice water thereby forming a homogenous mixture of water and salt.
The dissolution of salt in ice water leads to the formation of salt and water solution.
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