Question

is there any new substance formed after burning candle? ​

Answer 1

Answer:

When a candle burns, both physical and chemical changes occur. Physical Changes: On heating, candle wax gets melted. Since it again turns into solid wax on cooling. ... Chemical Changes : The wax near flame burns and gives new substances like carbon dioxide, carbon soot, water vapour, heat and light.

Answer 2

Answer:

ʏᴇᴀʜ ɴᴇᴡ sᴜʙsᴛᴀɴᴄᴇs ʟɪᴋᴇ ʜᴇᴀᴛ,sᴍᴏᴋᴇ ᴇᴛᴄ. ᴀʀᴇ ᴍᴀᴅᴇ ᴡʜɪʟᴇ ʙᴜʀɴɪɴɢ ᴀ ᴄᴀɴᴅʟᴇ ᴀɴᴅ ɪᴛ ɪs ᴀ ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇ.ᴀᴛ ᴛʜᴇ sᴀᴍᴇ ʜᴀɴᴅ ɪᴛ ɪs ᴀʟsᴏ ᴀ ᴘʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇ ʙᴇᴄᴀᴜsᴇ ɪᴛ ɪs ʀᴇᴠᴇʀsɪʙʟᴇ.