Question

Превратитесхемы реакцийнахимические уравнения,найдите среди нихреакции соединенияи реакцииразложения.NaNO3 -NaNO2+ O2SO2 +O2 -SO3FeS2 +O2 -Fe2O3+ SO2N2 +O2- NOCuS+O2 -CuO+ SO2CuO -Cu2O+ O2реакциисполучення_______реакциирозкладу_________Чем отличаютсяреакции соединенияот реакцийразложения?

Answer 1

1)2NaNO3=2NaNO2+O2

2)2SO2+O2=2SO3

3)2FeS2+7O2=2FeO3+4SO2

4)N2+O2=2NO

5)2CuS+3O2=2CuO+2SO2

6)4CuO=2Cu2O+O2

 

реакции сполучення 2), 3), 4) 6)

реакции розкладу 1), 

Соединение: молекула органического соединения и молекула простого или сложного вещества соединяются в новую молекулу, при этом другие продукты реакции не образуются.

Реакции разложения — химические реакции, в которых из одного, более сложного вещества образуются два или более других, более простых веществ.

Answer 2

Conversion of Reaction Schemes to Chemical Equations

To convert the given reaction schemes into chemical equations, we need to identify the reactants and products involved in each reaction. Let's analyze each reaction and convert them into chemical equations:

1. NaNO3 -> NaNO2 + O2 - This reaction involves the decomposition of sodium nitrate (NaNO3) into sodium nitrite (NaNO2) and oxygen gas (O2).

2. SO2 + O2 -> SO3 - This reaction is the combination of sulfur dioxide (SO2) and oxygen gas (O2) to form sulfur trioxide (SO3).

3. FeS2 + O2 -> Fe2O3 + SO2 - This reaction represents the oxidation of iron disulfide (FeS2) by oxygen gas (O2) to produce iron(III) oxide (Fe2O3) and sulfur dioxide (SO2).

4. N2 + O2 -> NO - This reaction is the combination of nitrogen gas (N2) and oxygen gas (O2) to form nitric oxide (NO).

5. CuS + O2 -> CuO + SO2 - This reaction involves the oxidation of copper sulfide (CuS) by oxygen gas (O2) to produce copper(II) oxide (CuO) and sulfur dioxide (SO2).

6. CuO -> Cu2O + O2 - This reaction represents the decomposition of copper(II) oxide (CuO) into copper(I) oxide (Cu2O) and oxygen gas (O2).

Types of Reactions

Among the given reactions, we can identify two types of reactions: reactions of formation and reactions of decomposition.

1. Reactions of Formation: - Reactions of formation involve the combination of elements or compounds to form a new compound. Examples of reactions of formation in the given set are: - SO2 + O2 -> SO3 - N2 + O2 -> NO - CuS + O2 -> CuO + SO2

2. Reactions of Decomposition: - Reactions of decomposition involve the breakdown of a compound into simpler substances. Examples of reactions of decomposition in the given set are: - NaNO3 -> NaNO2 + O2 - FeS2 + O2 -> Fe2O3 + SO2 - CuO -> Cu2O + O2

Difference between Reactions of Formation and Reactions of Decomposition

Reactions of formation and reactions of decomposition differ in terms of the changes that occur during the reaction.

1. Reactions of Formation: - In reactions of formation, new compounds are formed by the combination of elements or compounds. - These reactions are characterized by the formation of chemical bonds between the reactants to create a new compound. - Examples of reactions of formation in the given set include the combination of sulfur dioxide and oxygen gas to form sulfur trioxide (SO2 + O2 -> SO3) and the combination of nitrogen gas and oxygen gas to form nitric oxide (N2 + O2 -> NO).

2. Reactions of Decomposition: - In reactions of decomposition, a compound breaks down into simpler substances. - These reactions are characterized by the breaking of chemical bonds within the compound, resulting in the formation of multiple products. - Examples of reactions of decomposition in the given set include the decomposition of sodium nitrate into sodium nitrite and oxygen gas (NaNO3 -> NaNO2 + O2) and the decomposition of copper(II) oxide into copper(I) oxide and oxygen gas (CuO -> Cu2O + O2).

In summary, reactions of formation involve the combination of elements or compounds to form a new compound, while reactions of decomposition involve the breakdown of a compound into simpler substances.