Which of the following substances can react with metallic magnesium: a) dilute sulfuric acid;

| March 2, 2021 | education

Which of the following substances can react with metallic magnesium: a) dilute sulfuric acid; b) concentrated nitric acid; c) sodium hydroxide; d) aluminum chloride; e) copper (II) chloride? Write down the equations of the corresponding reactions.

Magnesium is an active metal.

Will react with sulfuric acid, nitric acid, and salts.

1. When magnesium reacts with sulfuric acid, magnesium sulfate salt is formed, and hydrogen is released.

Mg + H2SO4 = MgSO4 + H2 ↑.

2. In the reaction between magnesium and concentrated nitric acid, magnesium nitrate, nitric oxide (II) and water are formed.

3Mg + 8 HNO3 conc → 3Mg (NO3) 2 + 2NO ↑ + 4H2O.

3. Magnesium, as a more active metal than aluminum and copper, will displace these metals from their salts.

The reaction product between magnesium and aluminum chloride is aluminum and magnesium chloride.

3Mg + 2AlCl3 = 2Al + 3 MgCl2.

The reaction between magnesium and copper (II) chloride produces copper (precipitates) and magnesium chloride.

Mg + CuCl2 = Cu ↓ + MgCl2.



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