Complete the following chemical reactions: KOH + H₃PO₄= NaOH + H₂SO₄= MgCO₃ + KOH= Fe(OH)₃ + HCl = MgSO₄ + NaOH = CO₂ + NaOH = Al₂O₃ + HCl =

KOH + H₃PO₄ = K₃PO₄ + 3H₂O

Explanation: This is a neutralization reaction. Potassium hydroxide (KOH) reacts with phosphoric acid (H₃PO₄) to form potassium phosphate (K₃PO₄) and water (H₂O). To balance, we need 3 moles of KOH to react with 1 mole of H₃PO₄.

2NaOH + H₂SO₄ = Na₂SO₄ + 2H₂O

Explanation: This is another neutralization reaction. Sodium hydroxide (NaOH) reacts with sulfuric acid (H₂SO₄) to form sodium sulfate (Na₂SO₄) and water (H₂O). To balance, we need 2 moles of NaOH to react with 1 mole of H₂SO₄.

MgCO₃ + 2KOH = Mg(OH)₂ + K₂CO₃

Explanation: This is a double displacement reaction. Magnesium carbonate (MgCO₃) reacts with potassium hydroxide (KOH) to form magnesium hydroxide (Mg(OH)₂) and potassium carbonate (K₂CO₃). To balance, we need 2 moles of KOH to react with 1 mole of MgCO₃.

Fe(OH)₃ + 3HCl = FeCl₃ + 3H₂O

Explanation: This is a neutralization reaction. Iron(III) hydroxide (Fe(OH)₃) reacts with hydrochloric acid (HCl) to form iron(III) chloride (FeCl₃) and water (H₂O). To balance, we need 3 moles of HCl to react with 1 mole of Fe(OH)₃.

MgSO₄ + 2NaOH = Mg(OH)₂ + Na₂SO₄

Explanation: This is a double displacement reaction. Magnesium sulfate (MgSO₄) reacts with sodium hydroxide (NaOH) to form magnesium hydroxide (Mg(OH)₂) and sodium sulfate (Na₂SO₄). To balance, we need 2 moles of NaOH to react with 1 mole of MgSO₄.

CO₂ + 2NaOH = Na₂CO₃ + H₂O

Explanation: This is an acid-base reaction. Carbon dioxide (CO₂) reacts with sodium hydroxide (NaOH) to form sodium carbonate (Na₂CO₃) and water (H₂O). To balance, we need 2 moles of NaOH to react with 1 mole of CO₂.

Al₂O₃ + 6HCl = 2AlCl₃ + 3H₂O

Explanation: This is a neutralization reaction. Aluminum oxide (Al₂O₃) reacts with hydrochloric acid (HCl) to form aluminum chloride (AlCl₃) and water (H₂O). To balance, we need 6 moles of HCl to react with 1 mole of Al₂O₃.