What products are formed in the reaction between MgO and NaOH?

The reaction between MgO (magnesium oxide) and NaOH (sodium hydroxide) results in the formation of magnesium hydroxide (Mg(OH)2) and sodium oxide (Na2O). This is a double displacement reaction where the magnesium ion from MgO replaces the sodium ion in NaOH, forming Mg(OH)2 and Na2O. Magnesium hydroxide is a white solid that is sparingly soluble in water, while sodium oxide is a white solid that is highly reactive with water.