1.

(2) Which activity would you do to prove that the temperature of a substance must reachthe combustion point of that substance in order to ignite it?​

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Answer:

Answer:Some SUBSTANCE like magensium catches fire and burns with a drazelling WHITE flame when heated in air . Simmilar when a PIECE of paper is bought new a candle flame it burns producing HEAT and light The charcol and coal burns in air producing carbon dioxide heat and light .



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