Question

Какой из перечисленных кислотных оксидов не реагирует с водой? 1) SO 3 2) Р 2 O 5 3) Сl 2 О 7 4) SiO 2

Answer 1

Ответ.
4.
Пояснение.
SiO2 - диоксид кремния ( IV ), а в быту речной песок не будет реагировать с водой, тк кремниевая кислота нерастворима. Но взаимодействует с оксидом кальция CaO ( II.) SiO2 + CaO = CaSiO3 ( Силикат кальция.))) Надеюсь, смог помочь)))
SO3 +H2O =H2SO4 Серная кислота
P2O5 +H2O = 2H3PO4 Ортофосфорная кислота
Cl2O7 + H2O = 2HClO4 Хлорная кислота.

Answer 2

Identifying the Acidic Oxide that Does Not React with Water

The acidic oxides listed are: 1) SO3 2) P2O5 3) Cl2O7 4) SiO2

To identify the acidic oxide that does not react with water, we can consider the reactivity of each oxide with water.

SO3 reacts with water to form sulfuric acid (H2SO4) according to the following equation: SO3 + H2O → H2SO4 P2O5 reacts with water to form phosphoric acid (H3PO4) according to the following equation: P2O5 + 3H2O → 2H3PO4 Cl2O7 reacts with water to form perchloric acid (HClO4) according to the following equation: Cl2O7 + H2O → 2HClO4 SiO2 does not react with water under normal conditions. It is considered to be insoluble in water and does not undergo a significant reaction with it.

Conclusion

Based on the information available, SiO2 is the acidic oxide that does not react with water.