Do you have a redox equation you don't know how to balance? Besides simply balancing the equation in question, these programs will also give you a detailed overview of the entire balancing process with your chosen method.
In the oxidation number change method the underlying principle is that the gain in the oxidation number (number of electrons) in one reactant must be equal to the loss in the oxidation number of the other reactant.
A balanced chemical equation accurately describes the quantities of reactants and products in chemical reactions. The Law of Conservation of Mass states that mass is neither created nor destroyed in an ordinary chemical reaction. This means that a chemical equation must have the same number of atoms of each element on both side of the equation. Also the sum of the charges on one side of the equation must be equal to the sum of the charges on the other side. When these two conditions are met, the equation is said to be balanced.
Acidic medium
Basic medium
When an equation is written in the molecular form the program will have issues balancing atoms in parcial equations of oxidation and reduction (Step 3.). This is avoided by writing the equation in the ionic form.
Unsolvable equations
Solvable equations
Citing this page:
Generalic, Eni. "Balancing redox reactions by oxidation number change method." EniG. Periodic Table of the Elements. KTF-Split, 18 Jan. 2024. Web. {Date of access}. <https://www.periodni.com/balancing_redox_equations.php>.
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