DPP-10S11

CHEMICAL EQUATION & BALANCING

1. Write the chemical formula :

• Potassium Bromide
• Hydrogen Sulphide
• Aluminium Sulphate
• Ammonium Phosphate

2. Convert the following into Equations :

• Hydrogen sulphide gas burns in air to give water and sulphur dioxide.
• Barium chloride reacts with aluminium sulphate to give aluminium chloride and barium sulphate.
• Potassium bromide+ Barium iodide → Potassium iodide + Barium bromide.
• Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.

3. Balance the following equations :

• FeSO₄  →Fe₂O₃ + SO₂ + SO₃
• CH₄ + O₂ → CO₂ + H₂O
• H₂ + N₂ → NH₃
• Fe + H₂O → Fe₃O₄+ H₂