What occurs during a physical change?

What occurs during a physical change?

• A. Properties of the material change and its composition remains the same
• B. Properties of the material and its composition change
• C. The substance completely transforms into a different material
• D. The material is chemically altered in the process

Answer: (A)

During a physical change, the properties of the material, such as its shape, size, state, or appearance, can change, but its chemical composition remains unchanged. This means that the fundamental substance stays the same on a molecular level, even though it may look different or have different physical properties. Examples of physical changes include melting ice to water, boiling water into steam, or breaking glass. In each case, while the appearance or state of the material changes, the underlying chemical structure and identity of the substance do not alter, which is why the answer is accurate.

During a physical change, the properties of the material, such as its shape, size, state, or appearance, can change, but its chemical composition remains unchanged. This means that the fundamental substance stays the same on a molecular level, even though it may look different or have different physical properties. Examples of physical changes include melting ice to water, boiling water into steam, or breaking glass. In each case, while the appearance or state of the material changes, the underlying chemical structure and identity of the substance do not alter, which is why the answer is accurate.