Question

расставьте степени окисления реакций Fe+CuSO4=FeSO4+CuCu+FeCl3=CuCl2+H2Fe+Cl=FeCl3

Answer 1

Fe(0)+Cu(+2)S(+6)O(-2)4=Fe(+2)SO(+6)(-2)4+Cu(0) 

 Cu(0)+Fe(+3)Cl(-1)3=Cu(+2)Cl(-1)2+H(0)2

 Fe(0)+Cl(0)=Fe(+3)Cl(-1)3

Answer 2

Balancing and Determining Oxidation States in the Given Reactions

To balance and determine the oxidation states in the given reactions, let's break down each reaction and analyze the changes in oxidation states for the elements involved.

Reaction 1: Fe + CuSO4 → FeSO4 + Cu

In this reaction, iron (Fe) reacts with copper sulfate (CuSO4) to form iron sulfate (FeSO4) and copper (Cu).

To determine the oxidation states, we need to consider the following rules: - The oxidation state of an element in its elemental form is always 0. - The sum of the oxidation states in a neutral compound is always 0. - The sum of the oxidation states in a polyatomic ion is equal to the charge of the ion.

Let's assign oxidation states to the elements involved in the reaction: - The oxidation state of Fe is x. - The oxidation state of Cu in CuSO4 is +2. - The oxidation state of S in CuSO4 is +6. - The oxidation state of O in CuSO4 is -2.

Since the overall charge of CuSO4 is 0, we can write the equation: x + (1 * (+2)) + (4 * (-2)) = 0

Simplifying the equation, we get: x - 8 = 0 x = +8

Therefore, the oxidation state of Fe in FeSO4 is +8.

Reaction 2: Cu + FeCl3 → CuCl2 + Fe

In this reaction, copper (Cu) reacts with iron chloride (FeCl3) to form copper chloride (CuCl2) and iron (Fe).

Let's assign oxidation states to the elements involved in the reaction: - The oxidation state of Cu is x. - The oxidation state of Fe in FeCl3 is +3. - The oxidation state of Cl in FeCl3 is -1.

Since the overall charge of FeCl3 is 0, we can write the equation: (1 * (+3)) + (3 * (-1)) + x = 0

Simplifying the equation, we get: 3 - 3 + x = 0 x = 0

Therefore, the oxidation state of Cu in CuCl2 is 0.

Reaction 3: Fe + Cl2 → FeCl3

In this reaction, iron (Fe) reacts with chlorine (Cl2) to form iron chloride (FeCl3).

Let's assign oxidation states to the elements involved in the reaction: - The oxidation state of Fe is x. - The oxidation state of Cl in Cl2 is 0.

Since the overall charge of FeCl3 is 0, we can write the equation: x + (3 * (-1)) = 0

Simplifying the equation, we get: x - 3 = 0 x = +3

Therefore, the oxidation state of Fe in FeCl3 is +3.

Summary of Oxidation States in the Given Reactions

Based on the analysis of the given reactions, we can summarize the oxidation states as follows:

1. Fe + CuSO4 → FeSO4 + Cu - The oxidation state of Fe in FeSO4 is +8. - The oxidation state of Cu in CuSO4 is +2.

2. Cu + FeCl3 → CuCl2 + Fe - The oxidation state of Cu in CuCl2 is 0. - The oxidation state of Fe in FeCl3 is +3.

3. Fe + Cl2 → FeCl3 - The oxidation state of Fe in FeCl3 is +3.

Please note that the oxidation states determined here are based on the given reactions and may not represent the actual oxidation states in other compounds or contexts.