Question

Определите обратимая реакция или необратимая : 1)Ba(OH)2 + 2H3PO4 → Ba(H2PO4)2 + 2H2O2)Ba(OH)2 + H3PO4 → BaHPO4 + 2H2O3)NaHSO4 + NaOH = Na2SO4 + H2O

Answer 1

Первое, обратима
вторая не обратима
третьЯ не обратима

Answer 2

Determining Reversible or Irreversible Reactions

To determine whether a reaction is reversible or irreversible, we need to consider the direction in which the reaction proceeds and whether it can go back to its original state. Reversible reactions can proceed in both the forward and reverse directions, while irreversible reactions only proceed in one direction.

Let's analyze each of the given reactions:

1) Ba(OH)2 + 2H3PO4 → Ba(H2PO4)2 + 2H2O

In this reaction, barium hydroxide (Ba(OH)2) reacts with phosphoric acid (H3PO4) to form barium dihydrogen phosphate (Ba(H2PO4)2) and water (H2O). This reaction is reversible because it can proceed in both the forward and reverse directions. The products can react with each other to reform the reactants. Therefore, the reaction is reversible.

2) Ba(OH)2 + H3PO4 → BaHPO4 + 2H2O

In this reaction, barium hydroxide (Ba(OH)2) reacts with phosphoric acid (H3PO4) to form barium hydrogen phosphate (BaHPO4) and water (H2O). This reaction is also reversible because it can proceed in both the forward and reverse directions. The products can react with each other to reform the reactants. Therefore, the reaction is reversible.

3) NaHSO4 + NaOH → Na2SO4 + H2O

In this reaction, sodium bisulfate (NaHSO4) reacts with sodium hydroxide (NaOH) to form sodium sulfate (Na2SO4) and water (H2O). This reaction is irreversible because it proceeds only in the forward direction. Once the products are formed, they cannot react with each other to reform the reactants. Therefore, the reaction is irreversible.

In summary: 1) The reaction Ba(OH)2 + 2H3PO4 → Ba(H2PO4)2 + 2H2O is reversible. 2) The reaction Ba(OH)2 + H3PO4 → BaHPO4 + 2H2O is reversible. 3) The reaction NaHSO4 + NaOH → Na2SO4 + H2O is irreversible.

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