Question

why do substances burn with flame or without flame ( mornîng áll ) ​

Answer 1

Answer:

ok

Explanation:

it is because of the chemical reaction taking place between the substance burning and the air just above it . this is because of the heat combustion. so the material can burn with or even with out fire. this happen in many cases when the substance like sulfur because of the process called combustion of heat

Answer 2

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ᴡʜʏ ᴅᴏ sᴜʙsᴛᴀɴᴄᴇs ʙᴜʀɴ ᴡɪᴛʜ ғʟᴀᴍᴇ ᴏʀ ᴡɪᴛʜᴏᴜᴛ ғʟᴀᴍᴇ:-

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➜ɪᴛ ɪs ʙᴇᴄᴀᴜsᴇ ᴏғ ᴛʜᴇ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴ ᴛᴀᴋɪɴɢ ᴘʟᴀᴄᴇ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ sᴜʙsᴛᴀɴᴄᴇ ʙᴜʀɴɪɴɢ ᴀɴᴅ ᴛʜᴇ ᴀɪʀ ᴊᴜsᴛ ᴀʙᴏᴠᴇ ɪᴛ . ᴛʜɪs ɪs ʙᴇᴄᴀᴜsᴇ ᴏғ ᴛʜᴇ ʜᴇᴀᴛ ᴄᴏᴍʙᴜsᴛɪᴏɴ. sᴏ ᴛʜᴇ ᴍᴀᴛᴇʀɪᴀʟ ᴄᴀɴ ʙᴜʀɴ ᴡɪᴛʜ ᴏʀ ᴇᴠᴇɴ ᴡɪᴛʜ ᴏᴜᴛ ғɪʀᴇ. ᴛʜɪs ʜᴀᴘᴘᴇɴ ɪɴ ᴍᴀɴʏ ᴄᴀsᴇs ᴡʜᴇɴ ᴛʜᴇ sᴜʙsᴛᴀɴᴄᴇ ʟɪᴋᴇ sᴜʟғᴜʀ ʙᴇᴄᴀᴜsᴇ ᴏғ ᴛʜᴇ ᴘʀᴏᴄᴇss ᴄᴀʟʟᴇᴅ ᴄᴏᴍʙᴜsᴛɪᴏɴ ᴏғ ʜᴇᴀᴛ.