why matchstick or burning candle brought near reaction mixture of acid

1.	why matchstick or burning candle brought near reaction mixture of acid and metal carbonate get extinguished?
Answer» Answer: because these REACTIONS evolve CO2 which EXTINGUISHES a CANDLE when BROUGHT near the mouth of testtube

why matchstick or burning candle brought near reaction mixture of acid and metal carbonate get extinguished?

Answer»

Answer:

because these REACTIONS evolve CO2 which EXTINGUISHES a CANDLE when BROUGHT near the mouth of testtube