Write out the balanced equation for the reaction that occurs when mg(oh)2 and hcl react together. you do not need to make your subscripts smaller; just write them out as regular numbers. for example: mg(oh)2.

Magnesium  hydroxide  react  with  hydrochloride  to  give  magnesium  chloride  and  water
  THe word  equation
  magnesium  hydroxide  +hydrochroric  acid---> Magnesium  chloride+water

chemical  equation
Mg(OH)2(S) +  2HCl (L)--> Mgcl2(S) + 2H2O(l)
when  balancing  the  equation  we  count  the  number  of  molecules  in  the  reactant  side   which  should  balance  with  molecules  in  the  product  side.