Question
Balance the following chemical equation and classify them into their different class.
B. CH4 (g) + H2O (g) = CO (g) + H2 (g)
C. FeS (s) + HCL (aq) = FeCI2 (aq) + H2S (g)
D. C2H6 (g) + O2 (g) = CO2 (g) + H2O (g)
E. NO (g) + O2 (g) = NO2 (g)
B. CH4 (g) + H2O (g) = CO (g) + H2 (g)
C. FeS (s) + HCL (aq) = FeCI2 (aq) + H2S (g)
D. C2H6 (g) + O2 (g) = CO2 (g) + H2O (g)
E. NO (g) + O2 (g) = NO2 (g)
Answers
GPT-4o mini
Let's balance each chemical equation and classify them into their respective classes:
### B. CH₄ (g) + H₂O (g) = CO (g) + H₂ (g)
**Balanced Equation:**
To balance the equation, we can write:
\[
\text{CH}_4 (g) + \text{H}_2\text{O} (g) \rightarrow \text{CO} (g) + 3\text{H}_2 (g)
\]
(1 molecule of CH₄ reacts with 1 molecule of H₂O to produce 1 molecule of CO and 3 molecules of H₂)
**Classification:**
This is a **decomposition reaction** since methane is breaking down into carbon monoxide and hydrogen.
---
### C. FeS (s) + HCl (aq) = FeCl₂ (aq) + H₂S (g)
**Balanced Equation:**
This equation is already balanced:
\[
\text{FeS} (s) + 2\text{HCl} (aq) \rightarrow \text{FeCl}_2 (aq) + \text{H}_2\text{S} (g)
\]
**Classification:**
This is a **single replacement reaction** (or **single displacement reaction**) since one of the elements (Fe) is replaced by another (H).
---
### D. C₂H₆ (g) + O₂ (g) = CO₂ (g) + H₂O (g)
**Balanced Equation:**
Balancing this combustion reaction:
\[
2\text{C}_2\text{H}_6 (g) + 7\text{O}_2 (g) \rightarrow 4\text{CO}_2 (g) + 6\text{H}_2\text{O} (g)
\]
**Classification:**
This is a **combustion reaction** since it involves the burning of a hydrocarbon (ethane) in oxygen.
---
### E. NO (g) + O₂ (g) = NO₂ (g)
**Balanced Equation:**
To balance this reaction:
\[
2\text{NO} (g) + \text{O}_2 (g) \rightarrow 2\text{NO}_2 (g)
\]
**Classification:**
This is a **synthesis reaction** (or combination reaction) because nitrogen monoxide and oxygen combine to form nitrogen dioxide.
---
### Summary:
- **B**: Decomposition reaction (Balanced: \( \text{CH}_4 + \text{H}_2\text{O} \rightarrow \text{CO} + 3\text{H}_2 \))
- **C**: Single replacement reaction (Balanced: \( \text{FeS} + 2\text{HCl} \rightarrow \text{FeCl}_2 + \text{H}_2\text{S} \))
- **D**: Combustion reaction (Balanced: \( 2\text{C}_2\text{H}_6 + 7\text{O}_2 \rightarrow 4\text{CO}_2 + 6\text{H}_2\text{O} \))
- **E**: Synthesis reaction (Balanced: \( 2\text{NO} + \text{O}_2 \rightarrow 2\text{NO}_2 \))
### B. CH₄ (g) + H₂O (g) = CO (g) + H₂ (g)
**Balanced Equation:**
To balance the equation, we can write:
\[
\text{CH}_4 (g) + \text{H}_2\text{O} (g) \rightarrow \text{CO} (g) + 3\text{H}_2 (g)
\]
(1 molecule of CH₄ reacts with 1 molecule of H₂O to produce 1 molecule of CO and 3 molecules of H₂)
**Classification:**
This is a **decomposition reaction** since methane is breaking down into carbon monoxide and hydrogen.
---
### C. FeS (s) + HCl (aq) = FeCl₂ (aq) + H₂S (g)
**Balanced Equation:**
This equation is already balanced:
\[
\text{FeS} (s) + 2\text{HCl} (aq) \rightarrow \text{FeCl}_2 (aq) + \text{H}_2\text{S} (g)
\]
**Classification:**
This is a **single replacement reaction** (or **single displacement reaction**) since one of the elements (Fe) is replaced by another (H).
---
### D. C₂H₆ (g) + O₂ (g) = CO₂ (g) + H₂O (g)
**Balanced Equation:**
Balancing this combustion reaction:
\[
2\text{C}_2\text{H}_6 (g) + 7\text{O}_2 (g) \rightarrow 4\text{CO}_2 (g) + 6\text{H}_2\text{O} (g)
\]
**Classification:**
This is a **combustion reaction** since it involves the burning of a hydrocarbon (ethane) in oxygen.
---
### E. NO (g) + O₂ (g) = NO₂ (g)
**Balanced Equation:**
To balance this reaction:
\[
2\text{NO} (g) + \text{O}_2 (g) \rightarrow 2\text{NO}_2 (g)
\]
**Classification:**
This is a **synthesis reaction** (or combination reaction) because nitrogen monoxide and oxygen combine to form nitrogen dioxide.
---
### Summary:
- **B**: Decomposition reaction (Balanced: \( \text{CH}_4 + \text{H}_2\text{O} \rightarrow \text{CO} + 3\text{H}_2 \))
- **C**: Single replacement reaction (Balanced: \( \text{FeS} + 2\text{HCl} \rightarrow \text{FeCl}_2 + \text{H}_2\text{S} \))
- **D**: Combustion reaction (Balanced: \( 2\text{C}_2\text{H}_6 + 7\text{O}_2 \rightarrow 4\text{CO}_2 + 6\text{H}_2\text{O} \))
- **E**: Synthesis reaction (Balanced: \( 2\text{NO} + \text{O}_2 \rightarrow 2\text{NO}_2 \))