Question

#1: 2H2O + 2K (s) 2KOH (l) + 2H2 (g) is an example of which type of reaction?

A. single-displacement

B. combustion

C. decomposition

D. double-displacement

Answer 1

D. Double-displacement

Answer 2

D) double-displacement

Step-by-step explanation:

In a displacement reaction, one or more atoms replace one or more atoms of a given molecule to form a new one.

In this case, two atoms of K replace two atoms of H in the water molecules two form H2 and KOH.

Is double because two displacement happen in the global reaction equation.