Question

Mg -> MgO -> MgCl2 -> Mg(OH)2 -> MgSO4

Answer 1

Ответ:

2Mg+O2=2MgO

MgO+2HCl=MgCl2+H2O

MgCl2+2NaOH=2NaCl+Mg(OH)2

Mg(OH)2+CuSO4=Cu(OH)2+MgSO4

Answer 2

The series of chemical reactions you've provided represents the transformation of magnesium (Mg) through various compounds. Here's the breakdown of each step:

1. Mg → MgO: In this step, magnesium (Mg) reacts with oxygen (O2) to form magnesium oxide (MgO). This is a common reaction where magnesium undergoes combustion to produce its oxide.

2. MgO → MgCl2: In the next step, magnesium oxide (MgO) can react with hydrochloric acid (HCl) to form magnesium chloride (MgCl2) and water (H2O). This is an acid-base reaction.

3. MgCl2 → Mg(OH)2: Magnesium chloride (MgCl2) can undergo a double displacement reaction with a hydroxide compound, such as sodium hydroxide (NaOH), to produce magnesium hydroxide (Mg(OH)2) and sodium chloride (NaCl).

4. Mg(OH)2 → MgSO4: Magnesium hydroxide (Mg(OH)2) can further react with sulfuric acid (H2SO4) to produce magnesium sulfate (MgSO4) and water (H2O). This is another acid-base reaction.

So, the overall sequence represents a series of chemical reactions involving magnesium, oxygen, hydrochloric acid, sodium hydroxide, and sulfuric acid, resulting in the formation of magnesium sulfate (MgSO4).