Answer:D. neither red nor blue
Explanation:
Delta enthalpy = 2x386-3x1x432-3x942=-3350kJ/mol
A possible cause of a large percentage of error in an
experiment where MgO is produced from the combustion of magnesium would be not all of the Mg has
completely reacted. <span>
I hope this helps and if you have any further questions, please don’t hesitate
to ask again. </span>
