Available Answers

1. 1.

   Complete and balance the following equations.

   1. Sb + Cl₂ →
   2. Ag + S  →
   3. N₂ + O₂  ---^3000°C→
   4. NH₃ + HCl  →
   5. CaO + H₂O  →
   6. Hg + O₂  →
   7. SO₂ + H₂O  →
   8. N₂O₅ + H₂O  →
   9. P + O₂  →
   10. Fe + Cl₂  →
   11. Al + O₂  →
   12. Na + H₂  →
   13. C + S  →
   14. Mg + N₂  →
   15. NO + O₂  →
2. 2.

   Give balanced equations for the decomposition reactions of the following compounds.

   1. Potassium nitrate
   2. Ammonium hydroxide
   3. Silver carbonate
   4. Ammonium dichromate
   5. Silver oxide
   6. Lead carbonate
   7. Potassium chloride
   8. Copper carbonate
   9. Zinc hydroxide
   10. Calcium hydroxide
   11. Ammonium nitrate
   12. Phosphorus pentachloride
   13. Ammonium nitrite
   14. Washing soda
   15. Red lead
3. 3.

   Complete and balance the following equations:

   1. K + H₂O →
   2. Pb + AgNO₃ →
   3. Na + CuSO₄ →
   4. CuSO₄ + Ag →
   5. Mg + HCl →
   6. Cu + HCl →
   7. Zn + MgSO₄ →
   8. KI + Br₂ →
   9. Al + NaCl →
   10. K + Al₂(SO₄)₃ →
   11. Cu + AgNO₃ →
   12. Al + H₂SO₄ →
4. 4.

   Take sodium chloride solution in a test tube and add few drops of silver nitrate solution to it. You will observe white precipitate of silver chloride are formed which settle at the bottom of test tube.

     NaCl  +     AgNO3  → ________ ________  +  NaNO3
   colourless          colourless                                       colourless
     white 
   precipitate

5. 5.

   Complete and balance the following equations:

   1. NaOH + HCl →

   2. ZnO + HCl →

   3. CaSO4 + MgCl2 →

   4. NaOH + FeCl2 →

   5. KOH + CuCl2 →

   6. AlCl3 + Na2SO4 →

   7. MgO + HNO3 →

   8. NH4NO3 + H2SO4 →

   9. BaSO4 + NaCl →

   10. MgCl2 + Na2CO3 →

6. 6.

   Fill in the blanks and complete the given equations:

   1. FeCl₃ + __________  → NaCl + Fe(OH)₃↓
   2. MgCl₂ + Na₂SO₄  → ___________ + MgSO₄
   3. CaO + ________  → + H₂O + Ca(NO₃)₂
   4. _______ + NaCl  → AgCl↓ + NaNO₃
   5. MgCl₂ + H₂SO₄  → 2HCl + __________