Question

2 реакції горіння та термічного розкладу. СРОЧНОО!! ОЧЕНЬ СРОЧНО!!​

Answer 1

CH2=CH-CH2-CH2-CH3 (пентен-1) валентная изомерия
(метилциклобутан) изомерия скелета (1,2-диметилциклопропан) изомерия скелета

Answer 2

Reactions of Combustion and Thermal Decomposition

When a substance undergoes combustion or thermal decomposition, it can undergo various reactions. Let's explore two common reactions associated with burning and thermal decomposition.

1. Combustion Reaction: Combustion is a chemical reaction that occurs when a substance reacts with oxygen, typically producing heat and light. The reaction involves the rapid oxidation of the substance, resulting in the release of energy in the form of heat and light. The general equation for a combustion reaction is:

Fuel + Oxygen → Carbon Dioxide + Water + Energy

For example, when methane (CH4) burns in the presence of oxygen, it undergoes combustion and produces carbon dioxide (CO2) and water (H2O):

CH4 + 2O2 → CO2 + 2H2O

This reaction releases a significant amount of energy, which is why methane is often used as a fuel source.

2. Thermal Decomposition Reaction: Thermal decomposition is a reaction in which a compound breaks down into simpler substances when heated. This reaction occurs due to the absorption of heat energy, which provides the activation energy required for the decomposition to take place. The specific products formed during thermal decomposition depend on the compound being decomposed.

One example of thermal decomposition is the breakdown of calcium carbonate (CaCO3) into calcium oxide (CaO) and carbon dioxide (CO2) when heated:

CaCO3 → CaO + CO2

In this reaction, calcium carbonate decomposes into its constituent elements, calcium oxide and carbon dioxide, upon heating.

It's important to note that the reactions of combustion and thermal decomposition can vary depending on the specific substances involved. Different compounds have different reaction pathways and products when subjected to combustion or thermal decomposition.

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