A) C₂H10O + O₂ → 4CO₂ + 5H₂O (Combustion)
B) Ca + Mg(HCO₃)₂ → Mg + Ca(HCO₃)₂ (Double displacement)
C) K₂SO₃ + SrBr₂ → SrSO₃ + 2KBr (Double displacement)
D) 2Al + N₂ → 2AlN (Combination)
E) 2H₂O₂ → 2H₂O + O₂ (Decomposition)
In these equations, I have identified the type of reaction, predicted the products, and balanced the equations according to the Law of Conservation of Mass.
A) C₂H10O + O₂ →
- Type of reaction: Combustion
- Predicted products: The combustion of a hydrocarbon (C₂H10O) typically produces carbon dioxide (CO₂) and water (H₂O).
- Balanced equation: C₂H10O + 6O₂ → 4CO₂ + 5H₂O
B) Ca + Mg(HCO₃)₂ →
- Type of reaction: Double displacement (metathesis)
- Predicted products: When calcium (Ca) reacts with magnesium bicarbonate (Mg(HCO₃)₂), the calcium cation (Ca²⁺) and bicarbonate anion (HCO₃⁻) will swap partners to form magnesium cation (Mg²⁺) and calcium bicarbonate (Ca(HCO₃)₂).
- Balanced equation: Ca + Mg(HCO₃)₂ → Mg + Ca(HCO₃)₂
C) K₂SO₃ + SrBr₂ →
- Type of reaction: Double displacement (metathesis)
- Predicted products: When potassium sulfite (K₂SO₃) reacts with strontium bromide (SrBr₂), the potassium cation (K⁺) and bromide anion (Br⁻) will swap partners to form strontium cation (Sr²⁺) and sulfite anion (SO₃²⁻).
- Balanced equation: K₂SO₃ + SrBr₂ → SrSO₃ + 2KBr
D) Al + N₂ →
- Type of reaction: Combination
- Predicted products: Aluminum (Al) will react with nitrogen gas (N₂) to form aluminum nitride (AlN).
- Balanced equation: 2Al + N₂ → 2AlN
E) H₂O₂ →
- Type of reaction: Decomposition
- Predicted products: Hydrogen peroxide (H₂O₂) decomposes into water (H₂O) and oxygen gas (O₂).
- Balanced equation: 2H₂O₂ → 2H₂O + O₂