The difference is magnesium oxide contains oxide ions ,whereas aluminium oxide doesn't.
Magnesium oxide will react with water to form Magnesium Hydroxide. Magnesium Hydroxide will not reat further with water
Magnesium oxide is MgO and magnesium sulfate is MgSO4. Two completely different compounds.
Magnesium is an element. Magnesium oxide is a compound formed from magnesium and oxygen. Magnesium oxide often serves as a magnesium supplement.
Magnesium oxide has ionic bonds between magnesium and oxide ions.
Magnesium Oxide
Magnesium Oxide and Magnesium Carbonate are very different, Magnesium Oxide is Magnesium fused with Oxygen whereas Magnesium Carbonate is Magnesium fused with Carbon and Oxygen. The suffix "ate" means that an oxygen atom is involved. This added element (carbon) means that there will be a slight change in product. The chemical formula for Magnesium carbonate is MgCO3 whereas Magnesium oxide is MgO. See how there are two extra oxygens and one extra carbon? Add them together and you have CO2 and this is your difference. The difference in mixing magnesium oxide with sulfuric acid rather than mixing magnesium carbonate with sulfuric acid is that sulfuric acid and Magnesium carbonate create CO2 whereas Magnesium Oxide and sulfuric acid do not.
This compound is magnesium oxide - MgO.
The reaction between magnesium oxide and carbon at 2000C to form magnesium metal and carbon monoxide is an example of the reduction of magnesium oxide to magnesium metal.
The first corresponds to two moles of magnesium oxide while the latter is one mole of it.
The product is magnesium oxide (MgO) when magnesium reacts with oxygen.2Mg(s) + O2(g) --> 2MgO(s)magnesium + oxygen --> magnesium oxide
Magnesium + copper oxide --> magnesium oxide + copper
It produces Ammonia and Magnesium Deuteroxide