Complete and balance equation:
H2S + HCIO3 =>
SO2 + KMnO4 + H2O =>
FeS2 + O2 =>
K2Cr2O7 + H2S + H2SO4 =>
K2Cr2O7 + HBr =>
The Correct Answer and Explanation is :
The chemical reactions you’ve provided seem to be incomplete, and some appear to be redox reactions. Let me break down and balance the reactions for you step by step.
1. H2S + HCIO3 → SO2 + KMnO4 + H2O
We are dealing with the reaction of hydrogen sulfide (H2S) with chloric acid (HClO3). The products of this reaction are sulfur dioxide (SO2), potassium permanganate (KMnO4), and water (H2O).
Balanced reaction:
[
3H_2S + 2HClO_3 \rightarrow 3SO_2 + 2H_2O + 2KCl
]
Here, H2S (hydrogen sulfide) undergoes oxidation to form sulfur dioxide (SO2), and the chloric acid (HClO3) is reduced to potassium chloride (KCl) in the presence of potassium permanganate (KMnO4).
2. SO2 + KMnO4 + H2O → FeS2 + O2
This is a redox reaction where sulfur dioxide (SO2) reacts with potassium permanganate (KMnO4) and water to form iron disulfide (FeS2) and oxygen gas (O2).
Balanced reaction:
[
SO_2 + 2KMnO_4 + 2H_2O \rightarrow FeS_2 + 2O_2 + 2KOH
]
In this reaction, potassium permanganate (KMnO4) acts as an oxidizing agent and is reduced to potassium hydroxide (KOH), while sulfur dioxide (SO2) is oxidized to iron disulfide (FeS2) and oxygen gas (O2).
3. FeS2 + O2 → K2Cr2O7 + H2S + H2SO4
Iron disulfide (FeS2) reacts with oxygen (O2) to form chromium dioxide (K2Cr2O7) and sulfuric acid (H2SO4).
Balanced reaction:
[
2FeS_2 + 3O_2 \rightarrow K_2Cr_2O_7 + 3H_2S + 2H_2SO_4
]
4. K2Cr2O7 + HBr →
This reaction involves potassium dichromate (K2Cr2O7) and hydrobromic acid (HBr), which will form chromium salts and bromine gas.
Balanced reaction:
[
K_2Cr_2O_7 + 6HBr \rightarrow 2CrBr_3 + 3Br_2 + 3H_2O + 2KBr
]
In this redox reaction, potassium dichromate (K2Cr2O7) is reduced while bromine ions (Br-) are oxidized to bromine gas (Br2).
Explanation:
These reactions involve a series of redox processes, where substances are both oxidized and reduced, resulting in the formation of different products. For example, in the reaction between hydrogen sulfide (H2S) and chloric acid (HClO3), H2S undergoes oxidation to form sulfur dioxide (SO2), and HClO3 undergoes reduction to form potassium chloride (KCl).
Similarly, potassium permanganate (KMnO4) is a strong oxidizing agent in these reactions, helping to facilitate the oxidation of sulfur compounds like H2S and SO2. Each step in the sequence also demonstrates how elements such as sulfur, chromium, and iron participate in these redox reactions, transitioning between different oxidation states.
Now, I’ll generate the image with the balanced equations for you.
Here is the image showing the balanced chemical reactions as requested. It provides a visual representation of the reactions you wanted, with the chemical symbols and arrows clearly labeled. Let me know if you need further clarification or any additional details!
