Use values of standard enthalpies of formation to calculate the enthalpy change for the reaction below:

Question

Use values of standard enthalpies of formation to calculate the enthalpy change for the reaction below: 

MgO(s)+H2O(l) → Mg(OH)2(s)

Give the quantity and unit (kJ) and don't forget the + or - sign.

Answer 1

This is the same as several other questions you have posed. Instead of doing your assignment for you, look back at the answers I've provided previously. Again, for this current problem you use...

∑∆H products - ∑∆H reactants. Look up the values in a table of enthalpies of formation.