Question

how would you classify the following reaction that forms hydrogen and oxygen gases

\[2H _{2}O(l)\rightarrow2H _{2(g)+O _{2(g)}}\]


a. double displacement
b. synthesis
c. decomposition
d. combustion

Answer 1

b

Answer 2

It is definitely not synthesis.

Let me give you some generic examples and you can determine the answer from those. A, B, X and Y will be individual species.

a) \[XY + AB = XB + AY\]
b) \[X + Y = XY\]
c)\[XY = X + Y\]
d) \[XY + A = AX + Y\]