Answer;
MgCl2 (s) + H2O (g) --> MgO (s) + 2HCl (g)
Explanation;
- Magnesium chloride, MgCl2(s) reacts with water vapor to form magnesium oxide, MgO(s) and hydrogen chloride gas, HCl (g).
- The equation for the reaction is;
MgCl2 (s) + H2O (g) --> MgO (s) + HCl (g)
- Balancing ensures that the number of atoms of each element is equal on either side of the equation. Thus, the balanced equation for the reaction between magnesium and water vapor will be;
MgCl2 (s) + H2O (g) --> MgO (s) + 2HCl (g)