Question

Осуществите цепочку превращений Mg- MgCl2- Mg(OH)2- Mg(NO3)2- MgSO3-SO2

Answer 1

Mg- MgCl2- Mg(OH)2- Mg(NO3)2- MgSO3-SO2
Mg + 2HCl = MgCl2 + H2↑
MgCl2 + 2NaOH = Mg(OH)2↓ + 2NaCl

Mg(OH)2↓ + 2HNO3 = Mg(NO3)2 + 2H2O

Mg(NO3)2 + H2SO3 = MgSO3 + 2HNO3
MgSO3 = MgO + SO2

Answer 2

Mg+2HCl=MgCl2+H2
MgCl2+2KOH=Mg(OH)2+2KCl
Mg(OH)2+2HNO3=Mg(NO3)2+2H2O
Mg(NO3)2+K2SO3=MgSO3+2KNO3
MgSO3+H2SO4=MgSO4+H2O+SO2

Answer 3

Chain of Transformations: Mg- MgCl2- Mg(OH)2- Mg(NO3)2- MgSO3- SO2

To understand the chain of transformations from Mg to SO2, let's break it down step by step:

1. Mg to MgCl2: Magnesium (Mg) reacts with chlorine (Cl2) to form magnesium chloride (MgCl2) [[3]](https://sch2.edu.sbor.net/fileadmin/user_upload/KHimija_8-9.pdf).

2. MgCl2 to Mg(OH)2: Magnesium chloride (MgCl2) can react with sodium hydroxide (NaOH) to produce magnesium hydroxide (Mg(OH)2) and sodium chloride (NaCl).

3. Mg(OH)2 to Mg(NO3)2: Magnesium hydroxide (Mg(OH)2) can react with nitric acid (HNO3) to form magnesium nitrate (Mg(NO3)2) and water (H2O) [[3]](https://sch2.edu.sbor.net/fileadmin/user_upload/KHimija_8-9.pdf).

4. Mg(NO3)2 to MgSO3: Magnesium nitrate (Mg(NO3)2) can undergo thermal decomposition to produce magnesium oxide (MgO), nitrogen dioxide (NO2), and oxygen (O2). The nitrogen dioxide (NO2) can further react with water (H2O) to form sulfur dioxide (SO2) and nitric acid (HNO3). Finally, the sulfur dioxide (SO2) can react with water (H2O) to form sulfurous acid (H2SO3).

5. MgSO3 to SO2: Sulfurous acid (H2SO3) can decompose to produce sulfur dioxide (SO2) and water (H2O).

So, the complete chain of transformations from Mg to SO2 is as follows: Mg -> MgCl2 -> Mg(OH)2 -> Mg(NO3)2 -> MgSO3 -> SO2.

Please note that the reactions mentioned above are simplified representations and may involve specific reaction conditions and stoichiometry.