chemistry combustion

mgco3->mgo+co2, if it's a combustion reaction why does it not require oxygen? is it right to think it's because the fire that heats it needs oxygen but the actual reactant does not

Reply 1

Lighfy

Original post by Christina Tiana

mgco3->mgo+co2, if it's a combustion reaction why does it not require oxygen? is it right to think it's because the fire that heats it needs oxygen but the actual reactant does not

It isn't a combustion reaction, the magnesium carbonate is decomposing into magnesium oxide and carbon dioxide :smile:

Remember that combustion reactions produce carbon dioxide and water.

(edited 9 years ago)

Reply 2

Chittesh14

The person above is right. It is a process of thermal decomposition.

Posted from TSR Mobile

Reply 3

victoria98

Yep as the two people above said it's thermal decomposition. Combustion reactions usually take the general form of X + O2 --> CO2 + H2O
e.g. C2H4 + 3O2--> 2CO2 +2H2O

(edited 9 years ago)

Reply 4