Question

If 10 moles of Mg(OH)2 were reacted with HCl, how many moles of MgCl, would be produced

Answer 1

Solution:

As there is no such compound as $MgCl$ , we will assume that the task was about $MgCl_2$ :

$Mg(OH)_2+2HCl=MgCl_2+2H_2O$

Therefore:

$\nu(MgCl_2)=\nu(Mg(OH)_2)=10\,mol$

Answer: 10 moles.