Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction if no precipitate is formed. A) liquid pentanol (C5H12O) and gaseous oxygenB) aqueous ammonium chloride and aqueous calcium hydroxideC) aqueous strontium sulfide and aqueous copper (II) sulfate

A) C₅H₁₂O (l) + 7.5 O₂ (g) → 5 CO₂ (g) + 6 H₂O (l)

B) No reaction

C) SrS (aq) + CuSO₄ (aq) → CuS (s) ↓ + SrSO₄ (aq)

Explanation:

A) liquid pentanol (C₅H₁₂O) and gaseous oxygen.

This is a combustion reaction. assuming the combustion is complete, the products are CO₂ and H₂O.

C₅H₁₂O (l) + 7.5 O₂ (g) → 5 CO₂ (g) + 6 H₂O (l)

B) aqueous ammonium chloride and aqueous calcium hydroxide.

We could expect a double displacement reaction to take place. But since the products are CaCl₂ and NH₄OH, both of them soluble, no reaction occurs.

C) aqueous strontium sulfide and aqueous copper (II) sulfate.

This is a double displacement reaction. The formed precipitate is CuS.

SrS (aq) + CuSO₄ (aq) → CuS (s) ↓ + SrSO₄ (aq)