Question

The reaction 4Fe + 3O2 → 2Fe2O3 is a ____________________ reaction.

A) synthesis

B) decomposition

C) single replacement

D) double replacement

Answer 1

The reaction 4Fe + 3O2 → 2Fe2O3 is a double-replacement reaction.

Step-by-step explanation:

The reaction 4Fe + 3O2 → 2Fe2O3 is a double-replacement reaction. In a double-replacement reaction, two ionic compounds in aqueous solution switch anions and form two new compounds. In this reaction, iron (Fe) reacts with oxygen (O2) to form iron(III) oxide (Fe2O3).