true or False
in a physical change some of the physical properties of substance may be altered and the chemical composition remains the same
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True.
In a physical change, some of the physical properties of a substance may be altered, such as its state (solid, liquid, gas), shape, size, or texture. However, the chemical composition of the substance remains the same before and after the change. This means that the atoms or molecules that make up the substance are not rearranged or chemically transformed. Examples of physical changes include boiling or freezing water, cutting paper into smaller pieces, or melting chocolate.