Physical changes alter the form of substances without changing their molecular structure, while chemical changes result in the transformation of molecules into new substances. Examples include melting ice for physical changes and burning wood for chemical changes. Understanding these differences is essential in chemistry. ;
Physical changes modify the form of a substance without altering its molecular structure, while chemical changes change the molecular structure, leading to new substances. For example, melting ice is a physical change, whereas burning wood is a chemical change. Recognizing these differences is fundamental in chemistry.
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