Question

Mg->MgO->MgCl2->Mg(OH)2

Answer 1

2Mg + O2 = 2MgO
MgO + 2HCl = MgCl2 + H2O
MgCl2 + 2KOH = Mg(OH)2↓ + 2KCl

Answer 2

Chemical Reaction Steps: Mg -> MgO -> MgCl2 -> Mg(OH)2

The chemical reaction steps from Mg to Mg(OH)2 involve several reactions. First, Mg reacts with O2 to form MgO. Then, MgO can further react to form MgCl2, and finally, MgCl2 can react to form Mg(OH)2.

The individual reactions are as follows:

1. Mg + O2 = MgO [[1]](https://inmt.urfu.ru/fileadmin/user_upload/site_15053/zaochno/Departament_metallurgii_osn_stranica/KHimija/KHimija._Uchebnoe_posobie..pdf). 2. MgO + HCl = MgCl2 (This step is not explicitly mentioned in the search results, but it is a common reaction to produce magnesium chloride). 3. MgCl2 + Ca(OH)2 = Mg(OH)2 + CaCl2 (This step is not explicitly mentioned in the search results, but it is a common reaction to produce magnesium hydroxide).

These reactions illustrate the transformation of Mg to Mg(OH)2 through a series of chemical reactions.