The document provides step-by-step instructions for balancing a chemical equation. It begins with the unbalanced equation NaOH + H2S -> Na2S + H2O. It explains that coefficients need to be added to ensure the same number of each type of atom is on both sides of the equation. It demonstrates marking atoms of the same type with the same color and connecting their coefficients. The final balanced equation is shown as NaOH + 2H2S -> Na2S + 2H2O.
24. Balancing equationNa =Adjust the coefficients to get same number of elements onLHS (Left Hand Side)and RHS(Right Hand Side).NaOH + H2S -> Na2S + H2OO =S =