Question

what is physical and chemical change​

Answer 1

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• ᴘʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇs ᴏɴʟʏ ᴄʜᴀɴɢᴇ ᴛʜᴇ ᴀᴘᴘᴇᴀʀᴀɴᴄᴇ ᴏғ ᴀ sᴜʙsᴛᴀɴᴄᴇ, ɴᴏᴛ ɪᴛs ᴄʜᴇᴍɪᴄᴀʟ ᴄᴏᴍᴘᴏsɪᴛɪᴏɴ. ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇs ᴄᴀᴜsᴇ ᴀ sᴜʙsᴛᴀɴᴄᴇ ᴛᴏ ᴄʜᴀɴɢᴇ ɪɴᴛᴏ ᴀɴ ᴇɴᴛɪʀᴇʟʏ sᴜʙsᴛᴀɴᴄᴇ ᴡɪᴛʜ ᴀ ɴᴇᴡ ᴄʜᴇᴍɪᴄᴀʟ ғᴏʀᴍᴜʟᴀ. ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇs ᴀʀᴇ ᴀʟsᴏ ᴋɴᴏᴡɴ ᴀs ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴs.

Answer 2

Answer:

physical change - a usually reversible change in the physical properties of a substance, as size or shape: Freezing a liquid is a physical change.

chemical change - A chemical change is a change of materials into another, new materials with different properties and one or more than one new substances are formed.