The given question is incomplete, here is a complete question.
Which type of atom is expected in the reactants of this chemical reaction?
[tex]4Fe+3O_2\rightarrow 2Fe_2O_3[/tex]
A. iron (Fe)
B. gold (Au)
C. nitrogen (N)
D. chlorine (Cl)
Answer : The type of atoms expected in the reactant of the chemical reaction is, iron (Fe)
Explanation :
Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.
The species present on the left side of the right arrow is the reactant and the species present on the right side of the right arrow is the product.
The balanced chemical reaction is:
[tex]4Fe+3O_2\rightarrow 2Fe_2O_3[/tex]
The given molecule is made up of two elements that are iron and oxygen.
In the given equation, iron and oxygen are reactants and [tex]Fe_2O_3[/tex] is the product.
Hence, the type of atoms expected in the reactant of the chemical reaction is, iron (Fe)
