Question

Classify each of the following reactions as combination, decomposition, displacement or double displacement reactions:
(a) Zn (s) + 2AgNO3 (aq) ⎯⎯→ Zn(NO3)2 + 2Ag (s)
(b) 2KNO3 (s) heat ⎯⎯⎯→ 2KNO2 + O2 (g)
(c) Ni (NO3)2 (aq) + 2NaOH (aq) ⎯⎯→ Ni(OH)2 (s) + 2NaNO3 (aq) (
d) 2KClO3 (s) heat ⎯⎯⎯→ 2KCl (s) + 3O2 (g)
(e) MgO (s) + C (s) ⎯⎯→ CO (g) + Mg (s)

Answer 1

Answer:

a. displacement reaction

b. decomposition reaction

c. double displacement reaction

d. decomposition reaction