Plz help! A chemical equation is shown below.

FeCl3 + NaOH → NaCl + Fe(OH)3

What are the coefficients that should be added to balance this equation? Use complete sentences to explain your answer.

Explain how this chemical reaction demonstrates the conservation of mass.

FeCl3 + 3NaOH >3NaCl + Fe(OH)3

Explanation:

In balancing chemical equations, the law of conservation of mass is always applied. Mass is neither created nor destroyed.

As such, the number of atoms of each element on the right hand side must equal the number of  atoms of the same element on the left hand side of the reaction equation.

Now let us practice with this unbalanced reaction equation;

FeCl3 + NaOH → NaCl + Fe(OH)3

We have to add the necessary stoichiometric coefficients, so we have;

FeCl3 + 3NaOH >3NaCl + Fe(OH)3

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."

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