Question

7. Складіть рівняння реакцій, виставити коефіцієнти, зазначити до яко типу рівнянь воно відноситься: a) CaO + H2O б) SO3 + H2O в) P2O5 + H2O г) Н2О → під дією елект.струму​

Answer 1

Объяснение:

a) CaO + H2O = Ca(OH)2 сполучення

б) SO3 + H2O = H2SO3 сполучення

в) P2O5 + 3H2O = 2H3PO4 сполучення

г) 2Н2О → (під дією елект.струму) 2H2 + O2 розклад

Answer 2

Equations and Types of Reactions

a) The reaction between calcium oxide (CaO) and water (H2O) can be represented by the following equation: CaO + H2O → Ca(OH)2.

This is a combination reaction or a synthesis reaction because two substances combine to form a single compound.

b) The reaction between sulfur trioxide (SO3) and water (H2O) can be represented by the following equation: SO3 + H2O → H2SO4.

This is a combination reaction or a synthesis reaction because two substances combine to form a single compound.

c) The reaction between diphosphorus pentoxide (P2O5) and water (H2O) can be represented by the following equation: P2O5 + H2O → 2H3PO4.

This is also a combination reaction or a synthesis reaction because two substances combine to form a single compound.

d) The equation H2O → H2 + O2 represents the decomposition of water (H2O) under the influence of an electric current.

This is a decomposition reaction because a single compound breaks down into two or more simpler substances.

Please note that the coefficients in the equations may vary depending on the specific conditions of the reaction.