Question

Which statement best describes a physical change? 1. Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will remain the same. 2. Changes can occur to certain physical properties of the substance, but the overall shape of the substance will remain the same. 3. Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same. 4. Changes can occur to chemical properties of a substance, but the chemical composition of the substance remains the same.

Answer 1

Its 3. Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.

Step-by-step explanation:

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Answer 2

3. Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.

A physical changes the physical properties of a substance, but not the chemical composition. If it changed the chemical composition, it would be a chemical change. Typically a physical change can be reversible. Therefore, some typical examples of a physical change are:

- melting

- transition to a gas

- textural change

- change in shape

- change in size