Question

А)Оксид кальция-->гидроксид кальция-->сольб)оксид фосфора (V)-_->фосфорная кислота-->сольНапишите уравнение реакции. Дайте название солям. Помогите пж

Answer 1

А) CaO + H2O = Ca(OH)2
Ca(OH)2 + 2HCl = CaCl2(хлорид кальция) + 2H2O

б) P2O5 + 3H2O =t= 2H3PO4
H3PO4 + 3KOH = K3PO4(ортофосфат калия) + 3H2O

Answer 2

Reaction 1: Oxide of Calcium to Calcium Hydroxide to Salt

The reaction sequence is as follows: 1. Oxide of Calcium (CaO) reacts with water (H2O) to form Calcium Hydroxide (Ca(OH)2). 2. Calcium Hydroxide (Ca(OH)2) reacts with an acid to form a salt.

The balanced chemical equation for the reaction between Oxide of Calcium and water is: CaO + H2O → Ca(OH)2 [[1]]

The balanced chemical equation for the reaction between Calcium Hydroxide and an acid to form a salt is: Ca(OH)2 + 2HCl → CaCl2 + 2H2O (if hydrochloric acid is used) [[2]]

The name of the salt formed depends on the acid used. In the example above, hydrochloric acid (HCl) is used, so the salt formed is calcium chloride (CaCl2).

Reaction 2: Phosphorus Oxide (V) to Phosphoric Acid to Salt

The reaction sequence is as follows: 1. Phosphorus Oxide (V) (P2O5) reacts with water (H2O) to form Phosphoric Acid (H3PO4). 2. Phosphoric Acid (H3PO4) reacts with a base to form a salt.

The balanced chemical equation for the reaction between Phosphorus Oxide (V) and water is: P2O5 + 3H2O → 2H3PO4 [[3]]

The balanced chemical equation for the reaction between Phosphoric Acid and a base to form a salt is: H3PO4 + 3NaOH → Na3PO4 + 3H2O (if sodium hydroxide is used) [[4]]

The name of the salt formed depends on the base used. In the example above, sodium hydroxide (NaOH) is used, so the salt formed is sodium phosphate (Na3PO4).

I hope this helps! Let me know if you have any further questions.