Question

8. Определите и подпишите тип химической реакции. Химическая реакция |H2SiO3 = H2O + SiO2 H₂CO3 + NaBr = HBr + Na₂CO3 = 2KBr + Cl2 2KCl + Brz Тип реакции​

Answer 1

Ответ:

H2SiO3 = H2O + SiO2 реакция разложение

H₂CO3 + NaBr = HBr + Na₂CO3 реакция обмена

2KBr + Cl2=2KCl + Br2 реакция замещения

Answer 2

Types of Chemical Reactions

Chemical reactions can be classified into several types based on the changes that occur during the reaction. The given chemical reactions can be categorized as follows:

1. Decomposition Reaction: A decomposition reaction occurs when a compound breaks down into simpler substances. In the given reactions, the decomposition reaction is represented by the equation: - H2SiO3 = H2O + SiO2 - H₂CO3 = H2O + CO2 - NaBr = Na + Br2 - Na₂CO3 = Na2O + CO2

2. Combination Reaction: A combination reaction occurs when two or more substances combine to form a single compound. The given reactions do not represent a combination reaction.

3. Displacement Reaction: A displacement reaction occurs when an element displaces another element from a compound. The given reactions do not represent a displacement reaction.

4. Double Displacement Reaction: A double displacement reaction occurs when the positive and negative ions of two compounds exchange places. The given reactions do not represent a double displacement reaction.

5. Redox Reaction: A redox (reduction-oxidation) reaction involves the transfer of electrons between reactants. The given reactions do not represent a redox reaction.

Based on the given reactions, we can conclude that the type of reaction represented is primarily decomposition.