Mg(OH)₂ is the active ingredient in many laxatives. It can be made with the following
reaction:
Mg (s) + 2H₂O (1)→ Mg(OH)₂ (s) + H₂ (g)
If a laxative manufacturer has 2.8 x 105 grams of Mg, how many grams of water must be
used to have all of the Mg react to form Mg(OH)₂?
