Question

classifying reactions for chem please help!
(synthesis,decomposition,
single displacement or double displacement)

K2S (aq) + Co(NO3)2 (aq) → 2KNO3 (aq) + CoS (s)

3H2 (g) + N2 (g) → 2NH3 (g)


Zn (s) + CoCl2 (aq) → ZnCl2 (aq) + Co (s)

Answer 1

a) Double Replacement
b) Synthesis
c) Single Replacement