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Fill up-: 1) ______ reaction is accompanied by the evolution of heat. 2)the lowest temperature at which substance catch fire is _____.3)in a candle flame, the wax vapour burns completely in the _____ zone. 4) _______ rain can have serious effects on soil and water in lakes and rivers​

Answer»

tion:1) Exothermic 2) IGNITION Temperature 3) non - LUMINOUS 4) Acid



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