Write down the reaction equations: MgCl2 – Mg – MgO – Mg3 (PO4) 2 – H3PO4 H3PO4
| September 21, 2021 | education
1. When heated, magnesium chloride decomposes into magnesium and chlorine.
MgCl2 = Mg + Cl2.
2. When magnesium burns, magnesium oxide is formed.
2Mg + O2 = 2MgO.
3. Magnesium oxide is a basic oxide that reacts with acids. We make the equation for the reaction of magnesium oxide and phosphoric acid. Magnesium phosphate and water are formed.
3MgO + 2H3PO4 = Mg3 (PO4) 2 +3 H2O.
4.To obtain phosphoric acid from magnesium phosphate, we compose the equation for the reaction of magnesium phosphate with silicic acid. Formed magnesium silicate (precipitates) and acid.
Mg3 (PO4) 2 + 3H2SiO3 = 3MgSiO3 + 2H3PO4.
5. Let’s make the equation of the reaction of acid with alkali. We get calcium phosphate and water.
H3PO4 + 3KON = K3PO4 + 3H2O.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
