when an candle burns, the both the physical and chemical changes occur. explain.
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Physical Changes: On heating, candle wax gets melted. Since it again turns into solid wax on cooling. So, the melting of wax and vapourisation of melted wax are physical changes. Chemical Changes : The wax near flame burns and gives new substances like carbon dioxide, carbon soot, water vapour, heat and light.
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「ᴘʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇs: ᴏɴ ʜᴇᴀᴛɪɴɢ, ᴄᴀɴᴅʟᴇ ᴡᴀx ɢᴇᴛs ᴍᴇʟᴛᴇᴅ. sɪɴᴄᴇ ɪᴛ ᴀɢᴀɪɴ ᴛᴜʀɴs ɪɴᴛᴏ sᴏʟɪᴅ ᴡᴀx ᴏɴ ᴄᴏᴏʟɪɴɢ. sᴏ, ᴛʜᴇ ᴍᴇʟᴛɪɴɢ ᴏғ ᴡᴀx ᴀɴᴅ ᴠᴀᴘᴏᴜʀɪsᴀᴛɪᴏɴ ᴏғ ᴍᴇʟᴛᴇᴅ ᴡᴀx ᴀʀᴇ ᴘʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇs.
ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇs : ᴛʜᴇ ᴡᴀx ɴᴇᴀʀ ғʟᴀᴍᴇ ʙᴜʀɴs ᴀɴᴅ ɢɪᴠᴇs ɴᴇᴡ sᴜʙsᴛᴀɴᴄᴇs ʟɪᴋᴇ ᴄᴀʀʙᴏɴ ᴅɪᴏxɪᴅᴇ, ᴄᴀʀʙᴏɴ sᴏᴏᴛ, ᴡᴀᴛᴇʀ ᴠᴀᴘᴏᴜʀ, ʜᴇᴀᴛ ᴀɴᴅ ʟɪɢʜᴛ.」♡
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