PLS HURRY!! Charlie is balancing an equation. She has identified the atoms and counted the number of each in the reactants and products. What would Charlie adjust to make the number of atoms in the reactants the same as the number of atoms in the products? FeCl3 + NH4OH Fe(OH)3 + NH4Cl

CH4 + O2 CO2 + H2O

Fe + H2SO4 Fe2(SO4)3 + H2

PCl5 + H2O HCl + H3PO4

The balanced equations are as follows:

✅ FeCl₃ + 3NH₄OH ➡ Fe(OH)₃ + 3NH₄Cl

✅ CH₄ + O₂ ➡ CO₂ + 2H₂O

✅ 2Fe + 3H₂SO₂ ➡ Fe₂(SO₂)₃ + 3H₂

✅ PCl₅ + 4H₂O ➡ 5HCl + H₃PO₄

Explanation:

In the equation, FeCl₃ + 3NH₄OH ➡ Fe(OH)₃ + 3NH₄Cl, Charlie will adjust the number of atoms in NH₄OH in order for NH₄, Cl and OH to balance in the product side. 3 was placed in front of NH₄OH and NH₄Cl in order the balance it.

In the equation, CH₄ + O₂ ➡ CO₂ + 2H₂O, Charlie will adjust the number of atoms in H₂O. 2 was placed in front of H₂O in order to balance the atoms in the reactant and product sides.

In the equation, 2Fe + 3H₂SO₂ ➡ Fe₂(SO₂)₃ + 3H₂, Charlie will adjust the number of atoms in the reactant side in order for the product side to be balanced.

In the equation, PCl₅ + 4H₂O ➡ 5HCl + H₃PO₄, Charlie will adjust the number of atoms in H₂O and HCl for the equation to be balanced. 4 and 5 were placed in front of  H₂O and HCl respectively in order for the equation to be balanced.

In chemical equations, it is required that the number of atoms of each element found in the reactants must be equal to the number of atoms of each element found in the products. This makes the chemical equation balanced.