Question

The balanced chemical equation shows a reaction between iron (Fe) and oxygen (O2
O
2
).


4Fe+3O2→2Fe2O3
4
Fe
+
3
O
2
→
2
Fe
2
O
3


How does the equation show the law of conservation of mass?

(1 point)
Responses

The number of reactants is equal to the number of products.
The number of reactants is equal to the number of products.

The sum of the coefficients and subscripts is the same on both sides.
The sum of the coefficients and subscripts is the same on both sides.

Each element has the same subscript or coefficient on each side.
Each element has the same subscript or coefficient on each side.

The number of atoms of each element is the same on both sides.

Answer 1

The correct response is:

**The number of atoms of each element is the same on both sides.**

This statement reflects the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction. In this balanced equation, the total number of atoms of each element (iron and oxygen) is equal on both the reactant and product sides.