Question

1. In the chemical equation 4 Fe + 3 O2 → 2 Fe2O3, what are the products and reactants?

A) Products: 2 Fe2O3, Reactants: 4 Fe, 3 O2
B) Products: 4 Fe, 3 O2, Reactants: 2 Fe2O3
C) Products: 8 Fe, 6 O2, Reactants: Fe2O3
D) Products: 6 Fe2O3, Reactants: 3 Fe, 2 O2

2.How many oxygen atoms are on the right side of the equation (remember to multiply the coefficient by the subscript)?
A) 6
B) 8
C) 12
D) 10

3. How many oxygen atoms are there on the reactant side?
A) 3
B) 4
C) 6
D) 9

Answer 1

The products are 2 Fe2O3 and the reactants are 4 Fe and 3 O2 in the chemical equation A) 4 Fe + 3 O2 → 2 Fe2O3. There are C) 12 oxygen atoms on the right side of the equation and A) 3 oxygen atoms on the reactant side.

Step-by-step explanation:

The chemical equation 4 Fe + 3 O2 → 2 Fe2O3 consists of reactants and products. The reactants are the substances present on the left side of the arrow, which in this case are 4 Fe (iron) and 3 O2 (oxygen gas). The products are the substances present on the right side of the arrow, which in this case is 2 Fe2O3 (iron(III) oxide).

There are 12 oxygen atoms on the right side of the equation, obtained by multiplying the coefficient (2) by the subscript (3) of the O2 molecule. Therefore, the correct answer is choice C) 12.

On the reactant side, there are 3 oxygen atoms in the 3 O2 molecules, obtained by multiplying the subscript (2) by the coefficient (3) of the O2 molecule. Therefore, the correct answer is choice A) 3.