Substances are given: AlCl3, H2SO4, Mgo, NaOH. Write down the equations of three possible reactions

Substances are given: AlCl3, H2SO4, Mgo, NaOH. Write down the equations of three possible reactions between these substances in ionic and molecular form.

We are given chemical compounds, aluminum chloride salt, which has the chemical formula AlCl3, sulfuric acid, which has the chemical formula H2SO4, magnesium oxide, the chemical formula MgO, sodium hydroxide, the chemical formula NaOH. Let’s consider the cases of interaction between them.

Aluminum chloride reacts with sodium hydroxide. Salt and base form hydroxide and salt, in our case aluminum hydroxide and sodium chloride salt. Exchange reaction. Aluminum hydroxide precipitates.

AlCl3 + 3NaOH = Al (OH) 3 + 3NaCl

Al³⁺ + 3 Cl⁻ + 3 Na⁺ + 3 OH⁻ = Al (OH) 3 + 3 Na⁺ + 3 Cl⁻

Al³⁺ + 3 OH⁻ = Al (OH) 3

Chemical interaction between magnesium oxide and sulfuric acid. As a result, we get magnesium sulfate salt and water. Graphically, this equation of a chemical reaction can be expressed as follows:

MgO + H2SO4 = MgSO4 + H2O

MgO + 2 H⁺ + SO4²⁻ = Mg²⁺ + SO4²⁻ + H2O

MgO + 2 H⁺ = Mg²⁺ + H2O

A neutralization reaction that takes place between sulfuric acid and sodium hydroxide. After going through such a chemical reaction, we get salt and water. In our case, the salt is sodium sulfate.

H2SO4 + 2 NaOH = Na2SO4 + 2 H2O

2 H⁺ + SO4²⁻ + 2 Na⁺ + 2 OH⁻ = 2 Na⁺ + SO4²⁻ + 2 H2O

2 H⁺ + 2 OH⁻ = 2 H2O.