Question

Write three differences between physical and chemical changes.​

Answer 1

$\huge\pink{ᴀɴsᴡᴇʀ}$

$\huge\pink{ᴘʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇ}$

• ᴡʜᴇɴ ᴀ sᴜʙsᴛᴀɴᴄᴇ ᴜɴᴅᴇʀɢᴏᴇs ᴀ ᴘʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇ, ɪᴛs ᴄᴏᴍᴘᴏsɪᴛɪᴏɴ ʀᴇᴍᴀɪɴs ᴛʜᴇ sᴀᴍᴇ ᴅᴇsᴘɪᴛᴇ ɪᴛs ᴍᴏʟᴇᴄᴜʟᴇs ʙᴇɪɴɢ ʀᴇᴀʀʀᴀɴɢᴇᴅ.

• ᴘʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇ ɪs ᴀ ᴛᴇᴍᴘᴏʀᴀʀʏ ᴄʜᴀɴɢᴇ.

• ᴀ ᴘʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇ ɪɴᴠᴏʟᴠᴇs ᴠᴇʀʏ ʟɪᴛᴛʟᴇ ᴛᴏ ɴᴏ ᴀʙsᴏʀᴘᴛɪᴏɴ ᴏғ ᴇɴᴇʀɢʏ.

$\huge\pink{ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇs}$

• ᴡʜᴇɴ ᴀ sᴜʙsᴛᴀɴᴄᴇ ᴜɴᴅᴇʀɢᴏᴇs ᴀ ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇ, ɪᴛs ᴍᴏʟᴇᴄᴜʟᴀʀ ᴄᴏᴍᴘᴏsɪᴛɪᴏɴ ɪs ᴄʜᴀɴɢᴇᴅ ᴇɴᴛɪʀᴇʟʏ. ᴛʜᴜs, ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇs ɪɴᴠᴏʟᴠᴇ ᴛʜᴇ ғᴏʀᴍᴀᴛɪᴏɴ ᴏғ ɴᴇᴡ sᴜʙsᴛᴀɴᴄᴇs.

• ᴀ ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇ ɪs ᴀ ᴘᴇʀᴍᴀɴᴇɴᴛ ᴄʜᴀɴɢᴇ.

• Chemical change both physical and chemical properties of the substance including its composition