Question

Mg - MgO - Mg(OH)2 - MgSO4​

Answer 1

Перепишем цепочку превращений:

Mg —> MgO —> Mg(OH)₂ —> MgSO₄

1) 2 Mg + O₂ ===> 2 MgO

2) MgO + H₂O ===> Mg(OH)₂

3) Mg(OH)₂ + ZnSO₄ ===> MgSO₄ + Zn(OH)₂↓

Answer 2

The series you've mentioned involves different chemical compounds of magnesium (Mg) as they react with oxygen (O2) and water (H2O). Let's go through each compound in the series:

1. Mg (Magnesium): This is the base element, magnesium. It's a metal and reacts with oxygen to form magnesium oxide (MgO) when exposed to air.

2. MgO (Magnesium Oxide): When magnesium reacts with oxygen (O2), it forms magnesium oxide (MgO). This is a white, powdery solid and is a basic oxide.

3. Mg(OH)2 (Magnesium Hydroxide): When magnesium oxide (MgO) reacts with water (H2O), it forms magnesium hydroxide (Mg(OH)2). This compound is a white, slightly soluble solid and has antacid properties.

4. MgSO4 (Magnesium Sulfate): This compound is formed when magnesium hydroxide (Mg(OH)2) reacts with sulfuric acid (H2SO4). Magnesium sulfate is a white, crystalline salt and is commonly known as Epsom salt. It is used for various purposes, including as a laxative and in bath salts.

In summary, the series starts with elemental magnesium (Mg), which can react with oxygen to form magnesium oxide (MgO). If magnesium oxide is then exposed to water, it can react to form magnesium hydroxide (Mg(OH)2). Magnesium hydroxide can further react with sulfuric acid to produce magnesium sulfate (MgSO4). These chemical transformations are important in various industrial and chemical processes.