Question

What is an example of a physical change? having less ash than the paper that was burned to form it ice forming and then melting back into water rust having a different identity than the iron it forms on the irreversible reaction of vinegar and baking soda

Answer 1

The answer to your question is ''ice forming and then melting back into water''

Answer 2

Answer;

-Ice forming and then melting back into water

Explanation;

-A physical change is any change in matter that involves the substance going from one physical state to another. The reference to a physical state involves solids, liquids, and gases. When a substance undergoes a physical change it does not lose its original properties when changing from one phase to another.

-Examples of physical changes include;

• Ice melting involves a change from a solid to a liquid and the substances maintain the properties of water because the molecules never change.
• Water boiling is a physical change as water molecules vibrate faster, they enter the gas phase and become water vapor.