Question

4. Определите типы химических реакций по уравнениям реакции. Тип химической реакции Уравнения реакции A. H2+ CuO = H2O + Cu B. 2Ca + O2 → 2CaO → C. Fe(OH)2 +2 HCl → FeCl2 + 2H2O ->> Д. Fe(OH)2 → FeO + H2O (46.)​

Answer 1

Відповідь:

а)замещения

б)соединения

с)нейтрализации

д)разложения

Пояснення:

Тип химической реакции Уравнения реакции

A. H2+ CuO = H2O + Cu-реакция замещения (окислительно-восстановительная)

B. 2Ca + O2 → 2CaO → реакция соединения (окислительно- востановительная)

C. Fe(OH)2 +2 HCl → FeCl2 + 2H2O ->>  реакция обмена,  реакция нейтрализации (когда основание реагирует с кислотой)

Д. Fe(OH)2 → FeO + H2O -реакция разложения;

Answer 2

Types of Chemical Reactions

Chemical reactions can be classified into several types based on the changes that occur during the reaction. Let's analyze the given chemical equations and determine the types of reactions they represent.

A. H2 + CuO = H2O + Cu

This equation represents a redox reaction, specifically a single displacement reaction or displacement reaction. In this reaction, hydrogen gas (H2) displaces copper (Cu) from copper oxide (CuO) to form water (H2O) and copper metal (Cu) [[1]].

B. 2Ca + O2 → 2CaO

This equation represents a combination reaction or synthesis reaction. In this reaction, calcium (Ca) combines with oxygen (O2) to form calcium oxide (CaO) [[2]].

C. Fe(OH)2 + 2HCl → FeCl2 + 2H2O

This equation represents a double displacement reaction or metathesis reaction. In this reaction, iron(II) hydroxide (Fe(OH)2) reacts with hydrochloric acid (HCl) to form iron(II) chloride (FeCl2) and water (H2O) [[3]].

D. Fe(OH)2 → FeO + H2O

This equation represents a decomposition reaction. In this reaction, iron(II) hydroxide (Fe(OH)2) decomposes to form iron(II) oxide (FeO) and water (H2O) [[4]].

To summarize: - Equation A represents a single displacement reaction or redox reaction. - Equation B represents a combination reaction or synthesis reaction. - Equation C represents a double displacement reaction or metathesis reaction. - Equation D represents a decomposition reaction.

These are the types of chemical reactions represented by the given equations. If you have any further questions, feel free to ask!