Question

с какими из перечисленных оксидов:CO2, CaO, FeO,SO3,MnO, SiO2-будет реагировать гидроксид натрия?Составьте уравнение возможных реакций.

Answer 1

1)CO2 + NaOH = NaHCO3 (CO2 в избытке)
CO2 + 2NaOH = Na2CO3 + H2O(NaOH в избытке)

2) NaOH+CaO(реакция не идёт)

3)NaOH+FeO(реакция не идёт)

4) NaOH+SO3===>NaHSO4 (NaOH в избытке)

2NaOH+SO3 ===> Na2SO4+H2O(SO3 в избытке)

5)NaOH+MnO(реакция не идёт)

6)2NaOH+SiO2===>Na2SiO3 + H2O

Answer 2

Reactivity of Sodium Hydroxide with Oxides

Sodium hydroxide (NaOH) can react with various oxides to form different products. Let's determine with which of the listed oxides - CO2, CaO, FeO, SO3, MnO, SiO2 - sodium hydroxide will react and then formulate the possible reactions.

Reactivity with Oxides: - Sodium hydroxide can react with oxides to form corresponding salts and water. The reaction generally involves the formation of a salt and water.

Reactions with Specific Oxides: 1. CO2 (Carbon Dioxide): - Sodium hydroxide can react with carbon dioxide to form sodium carbonate and water. - The balanced chemical equation for this reaction is: ``` 2 NaOH + CO2 → Na2CO3 + H2O [[2]] ```

2. CaO (Calcium Oxide): - Sodium hydroxide can react with calcium oxide to form calcium hydroxide. - The balanced chemical equation for this reaction is: ``` CaO + 2 NaOH → Na2Ca(OH)2 [[4]] ```

3. FeO (Iron(II) Oxide): - Sodium hydroxide can react with iron(II) oxide to form sodium ferrite and water. - The balanced chemical equation for this reaction is: ``` FeO + 2 NaOH → Na2FeO2 + H2O [[4]] ```

4. SO3 (Sulfur Trioxide): - Sodium hydroxide can react with sulfur trioxide to form sodium sulfate. - The balanced chemical equation for this reaction is: ``` SO3 + 2 NaOH → Na2SO4 + H2O [[1]] ```

5. MnO (Manganese(II) Oxide): - Sodium hydroxide can react with manganese(II) oxide to form sodium manganate and water. - The balanced chemical equation for this reaction is: ``` MnO + 2 NaOH → Na2MnO2 + H2O [[4]] ```

6. SiO2 (Silicon Dioxide): - Sodium hydroxide can react with silicon dioxide to form sodium silicate and water. - The balanced chemical equation for this reaction is: ``` SiO2 + 2 NaOH → Na2SiO3 + H2O [[7]] ```

In summary, sodium hydroxide can react with CO2, CaO, FeO, SO3, MnO, and SiO2 to form corresponding salts and water through specific chemical reactions as outlined above.