2P07(When Alkali Meets Ammonium Salts)--Done by Cheng Tong Wen, Joel Koh, Ong Yi kai, Alex wu

Observations
Gone through already in the science lab


Conclusion 
1)Alkali reacts with ammonium salt to produce metallic salt,water and ammonium gas.
2)Alkali + ammonium salt--> metallic salt + water + ammonium gas
3)It is because the reaction needs heat energy in order to help break the bonds in the compounds
4)I can conclude that ammonia gas is an alkali
5)The litmus paper must be damp in order for an observation to occur
6)  Mix Substance X with hydroxide. If it is ammonium gas, it will produce water + salt + ammonia. Use damp litmus papers and the gas will turn the red litmus paper blue and the blue litmus paper will remain blue.

7.     

E

1(a)i) Sodium Hydroxide + Ammonium Chloride -> Sodium Chloride + Ammonia(g) + Water

ii) NaOH + NH₄Cl -> NaCl+NH₃(g) +H₂O

2(b) i)Sodium Hydroxide + Ammonium Sulfate -> Sodium Sulfate + Ammonia(g) + Water

ii) 2NaOH + (NH₄)₂SO₄(aq) → Na₂SO₄(aq) + 2NH₃ + 2H₂O

3(c) i)Sodium Hydroxide + Ammonium Nitrate -> Sodium Nitrate + Ammonia(g) + Water

ii) NaOH + NH₄NO₃ -> NaNO₃ + NH₃ + H₂O

4(d) i)Calcium Hydroxide + Ammonium Chloride -> Calcium Chloride + Ammonia(g) + Water

         ii) Ca(OH)₂(aq) + 2NH₄Cl -> CaCl₂+ 2NH₃(g) + 2H₂O

5(e) i)Calcium Hydroxide + Ammonium Sulfate -> Calcium Sulphate + Ammonia + Water                               

ii) Ca(OH)₂ + (NH₄)₂SO₄ -> CaSO₄ + 2NH₃(g) + 2H₂O 

6(f) i)Calcium Hydroxide + Ammonium Nitrate ->  No possible reaction observed