Question
Balance the following chemical equations and classify them into their different types of reaction.
a) BaO + Al produce Al2O3+ Ba
b) No + O2 produce NO2
c) K2CO3 produce K2O + CO2
d) Zn + HCl produce ZnCl2 + H2
e) Ba( OH)2 + Fe2(SO4)3 produce Fe( OH)3+ BaSO4
a) BaO + Al produce Al2O3+ Ba
b) No + O2 produce NO2
c) K2CO3 produce K2O + CO2
d) Zn + HCl produce ZnCl2 + H2
e) Ba( OH)2 + Fe2(SO4)3 produce Fe( OH)3+ BaSO4
Answers
GPT-4o mini
Let’s balance each of the provided chemical equations and classify them according to their types of reactions.
### a) Balancing and Classification
**Unbalanced:** BaO + Al → Al₂O₃ + Ba
**Balanced:** 3 BaO + 2 Al → Al₂O₃ + 3 Ba
**Type:** This is a **single replacement reaction** (specifically, a redox reaction) where aluminum displaces barium from barium oxide.
---
### b) Balancing and Classification
**Unbalanced:** NO + O₂ → NO₂
**Balanced:** 2 NO + O₂ → 2 NO₂
**Type:** This is a **combination reaction** (also called a synthesis reaction) where nitrogen monoxide reacts with oxygen to form nitrogen dioxide.
---
### c) Balancing and Classification
**Unbalanced:** K₂CO₃ → K₂O + CO₂
**Balanced:** K₂CO₃ → K₂O + CO₂
(Note: This equation is already balanced as is.)
**Type:** This is a **decomposition reaction** where potassium carbonate decomposes into potassium oxide and carbon dioxide.
---
### d) Balancing and Classification
**Unbalanced:** Zn + HCl → ZnCl₂ + H₂
**Balanced:** Zn + 2 HCl → ZnCl₂ + H₂
**Type:** This is a **single replacement reaction** where zinc replaces hydrogen in hydrochloric acid.
---
### e) Balancing and Classification
**Unbalanced:** Ba(OH)₂ + Fe₂(SO₄)₃ → Fe(OH)₃ + BaSO₄
**Balanced:** 3 Ba(OH)₂ + Fe₂(SO₄)₃ → 2 Fe(OH)₃ + 3 BaSO₄
**Type:** This is a **double replacement reaction** (also called a double displacement reaction) where barium hydroxide reacts with iron(III) sulfate to form iron(III) hydroxide and barium sulfate.
---
**Summary of Balanced Equations:**
1. \(3 \, \text{BaO} + 2 \, \text{Al} \rightarrow \text{Al}_2\text{O}_3 + 3 \, \text{Ba}\) (Single Replacement)
2. \(2 \, \text{NO} + \text{O}_2 \rightarrow 2 \, \text{NO}_2\) (Combination)
3. \(\text{K}_2\text{CO}_3 \rightarrow \text{K}_2\text{O} + \text{CO}_2\) (Decomposition)
4. \(\text{Zn} + 2 \, \text{HCl} \rightarrow \text{ZnCl}_2 + \text{H}_2\) (Single Replacement)
5. \(3 \, \text{Ba(OH)}_2 + \text{Fe}_2(\text{SO}_4)_3 \rightarrow 2 \, \text{Fe(OH)}_3 + 3 \, \text{BaSO}_4\) (Double Replacement)
### a) Balancing and Classification
**Unbalanced:** BaO + Al → Al₂O₃ + Ba
**Balanced:** 3 BaO + 2 Al → Al₂O₃ + 3 Ba
**Type:** This is a **single replacement reaction** (specifically, a redox reaction) where aluminum displaces barium from barium oxide.
---
### b) Balancing and Classification
**Unbalanced:** NO + O₂ → NO₂
**Balanced:** 2 NO + O₂ → 2 NO₂
**Type:** This is a **combination reaction** (also called a synthesis reaction) where nitrogen monoxide reacts with oxygen to form nitrogen dioxide.
---
### c) Balancing and Classification
**Unbalanced:** K₂CO₃ → K₂O + CO₂
**Balanced:** K₂CO₃ → K₂O + CO₂
(Note: This equation is already balanced as is.)
**Type:** This is a **decomposition reaction** where potassium carbonate decomposes into potassium oxide and carbon dioxide.
---
### d) Balancing and Classification
**Unbalanced:** Zn + HCl → ZnCl₂ + H₂
**Balanced:** Zn + 2 HCl → ZnCl₂ + H₂
**Type:** This is a **single replacement reaction** where zinc replaces hydrogen in hydrochloric acid.
---
### e) Balancing and Classification
**Unbalanced:** Ba(OH)₂ + Fe₂(SO₄)₃ → Fe(OH)₃ + BaSO₄
**Balanced:** 3 Ba(OH)₂ + Fe₂(SO₄)₃ → 2 Fe(OH)₃ + 3 BaSO₄
**Type:** This is a **double replacement reaction** (also called a double displacement reaction) where barium hydroxide reacts with iron(III) sulfate to form iron(III) hydroxide and barium sulfate.
---
**Summary of Balanced Equations:**
1. \(3 \, \text{BaO} + 2 \, \text{Al} \rightarrow \text{Al}_2\text{O}_3 + 3 \, \text{Ba}\) (Single Replacement)
2. \(2 \, \text{NO} + \text{O}_2 \rightarrow 2 \, \text{NO}_2\) (Combination)
3. \(\text{K}_2\text{CO}_3 \rightarrow \text{K}_2\text{O} + \text{CO}_2\) (Decomposition)
4. \(\text{Zn} + 2 \, \text{HCl} \rightarrow \text{ZnCl}_2 + \text{H}_2\) (Single Replacement)
5. \(3 \, \text{Ba(OH)}_2 + \text{Fe}_2(\text{SO}_4)_3 \rightarrow 2 \, \text{Fe(OH)}_3 + 3 \, \text{BaSO}_4\) (Double Replacement)