Question

What type of reaction is the following?

3Fe + 4H2O -> Fe3O4 + 4H2
a) Synthesis
b) Decomposition
c) Single Replacement/Single Displacement reaction
d) Double Replacement/Double Displacement reaction

Answer 1

The reaction 3Fe + 4H2O -> Fe3O4 + 4H2 is a single replacement/single displacement reaction.

Step-by-step explanation:

The reaction 3Fe + 4H2O -> Fe3O4 + 4H2 is a single replacement/single displacement reaction.

In a single replacement reaction, one element replaces a similar element in a compound. In this case, iron (Fe) is replacing hydrogen (H) in water (H2O).

As a result of the reaction, iron (Fe) combines with oxygen (O) from water to form iron(II,III) oxide (Fe3O4), and hydrogen gas (H2) is released.