Burning Magnesium in O2 and CO2
 2Mg    +    O2  ---->    2MgO    Synthesis  Reaction

Heat Out = Exothermic

Burning In O2 White Powder = MgO
 
2Mg   +   CO2  ---->   2MgO   +   C    Single Displacement Reaction
  Producing CO2 Gas  
The Match Goes Out In CO2 The Mg Keeps Burning In CO2 But Notice The Black Material
 

Return to Ask Why!

Return to Bisonscience