Question

Назвіть типи реакцій за всіма відомими вам класифікаційними ознаками: FегОз(тв.)+3H2(г),=2Fe(тв.)+3H2O(г), ДН=+89,6кДж варіанти відповідей Ендотермічна Екзотермічна Обміну Заміщення Гомогенна Гетерогенна Окисно-відновнаСрочно!!!!!​

Answer 1

Відповідь:

Тип реакції: окисно-відновна реакція (залежно від наявності окиснення та відновлення хімічних речовин)

Тип енергетичної реакції: екзотермічна (бо має від'ємне значення ентальпії (ДН) та виділяє тепло)

Пояснення:

давай більше баллів !!

Answer 2

Types of Reactions

There are several types of reactions based on different classification criteria. Let's discuss the types of reactions based on the given chemical equation and the options provided:

1. Endothermic Reaction: An endothermic reaction is a reaction that absorbs heat from its surroundings. In this type of reaction, the products have more energy than the reactants, and the change in enthalpy (∆H) is positive. The reaction given in the question, FeO(s) + 3H2(g) = 2Fe(s) + 3H2O(g), ∆H = 89.6 kJ, is an example of an endothermic reaction. The positive value of ∆H indicates that heat is absorbed during the reaction. [[1]]

2. Exothermic Reaction: An exothermic reaction is a reaction that releases heat to its surroundings. In this type of reaction, the products have less energy than the reactants, and the change in enthalpy (∆H) is negative. The reaction given in the question is not an example of an exothermic reaction since the value of ∆H is positive. [[1]]

3. Exchange Reaction: An exchange reaction, also known as a double displacement or metathesis reaction, is a chemical reaction in which the cations and anions of two different compounds exchange places, resulting in the formation of two new compounds. The reaction given in the question, FeO(s) + 3H2(g) = 2Fe(s) + 3H2O(g), is not an example of an exchange reaction since there is no exchange of cations or anions between compounds. [[1]]

4. Substitution Reaction: A substitution reaction is a chemical reaction in which an atom or a group of atoms is replaced by another atom or group of atoms. The reaction given in the question, FeO(s) + 3H2(g) = 2Fe(s) + 3H2O(g), is not an example of a substitution reaction since there is no replacement of atoms or groups of atoms. [[1]]

5. Homogeneous Reaction: A homogeneous reaction is a reaction in which all the reactants and products are in the same phase (either all in the gas phase, all in the liquid phase, or all in the solid phase). The reaction given in the question, FeO(s) + 3H2(g) = 2Fe(s) + 3H2O(g), is not an example of a homogeneous reaction since the reactants and products are in different phases (solid and gas). [[1]]

6. Heterogeneous Reaction: A heterogeneous reaction is a reaction in which the reactants and products are in different phases. The reaction given in the question, FeO(s) + 3H2(g) = 2Fe(s) + 3H2O(g), is an example of a heterogeneous reaction since the reactants are in the solid phase and the products are in the gas phase. [[1]]

7. Redox Reaction: A redox reaction, also known as an oxidation-reduction reaction, is a chemical reaction in which there is a transfer of electrons between reactants. The given reaction, FeO(s) + 3H2(g) = 2Fe(s) + 3H2O(g), is an example of a redox reaction since there is a transfer of electrons from iron (Fe) in FeO to hydrogen (H) in H2. [[1]]

Based on the given options, the correct answer would be: - Endothermic (Ендотермічна) - Heterogeneous (Гетерогенна) - Redox (Окисно-відновна)

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