What state of mat­ter is fire: solid, liq­uid or gas?

BBC Earth (Asia) - - Q & A -

The na­ture of a flame de­pends on what is be­ing burnt. A can­dle flame will pri­mar­ily be a mix­ture of hot gases (air and va­por­ised paraf­fin wax). The oxy­gen in the air re­acts with the paraf­fin to pro­duce heat, light and car­bon diox­ide. Other ma­te­ri­als – such as mag­ne­sium – burn much hot­ter, re­sult­ing in the fourth state of mat­ter: plasma. ML

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