Question

Write word equation for the following molecular equation:

\[\ce{NH3 [g] + HCl [g] ⇌ NH4Cl [s]}\]

Word equation:
State which characteristic is observed in the above reaction.

Give an-example of a similar above characteristic, seen between two other gaseous reactants.

Answer 1

Ammonia + Hydrogen chloride ⇌ ammonium chloride

Indication –

Change of state from gas to solid.

Other example of change of state are:

1. 2H₂ (g) + O₂ (g) → 2H₂O (l)
2. C (s) + 2S (s) → CS₂ (l)