Question

Which of the following is most clearly an example of a physical change?

A. A solid dissolves when added to a liquid
B. A solution color when something is added
C. Two liquids produce heat when mixed together
D. A gas is released when two solutions are combined

Answer 1

a physical change does not produce a new substance.change in state or phrase.(melting, freezing, vaporization,condensation, sublimation)are physical changes.example of physical changes include crushing a can, melting an ice cube, and breaking a bottle.a chemical Change makes a substance that wasn't there before.

Answer 2

Answer: Option (A) is the correct answer.

Step-by-step explanation:

Physical change is defined as a change that does not bring any changes in the chemical properties of a substance.

For example, solubility, density, volume etc are all physical changes.

When sugar dissolves in water then it is a physical change.

Whereas color change may not necessarily shows a physical change because a chemical change can also lead to color change of a solution or substance.

For example, rusting of iron is a chemical reaction in which color change also occurs.

Hence, we can conclude that a solid dissolves when added to a liquid is most clearly an example of a physical change.