Question

Define Physical and chemical change with an example.​

Answer 1

Explanation:

Changes that affect only the physical properties of a substance and where no new substance are formed are called Physical changes. For example: melting of butter.

Changes that involves the formation of new substance are called Chemical changes. For example : burning of wax.

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Answer 2

Answer:

ᴍɪss ᴍᴀsᴛᴇʀᴍɪɴᴅ~❤️

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.