BALANCEO DE ECUACIONES QUÍMICAS

This calculator uses the Gaussian elimination method to determine the stoichiometric coefficients of a chemical equation. Gaussian elimination (also known as row reduction) is a numerical method for solving a system of linear equations. The method is named after the German mathematician Carl Friedrich Gauss (1777-1855).

Every chemical equations must be balanced. What does it mean to be balanced? It means that the law of conservation of mass is obeyed. The law of conservation of mass states that in an ordinary chemical reaction, matter is neither created nor destroyed, that is, a chemical equation must have the same number of atoms of each element on both sides of the equation.

Write an unbalanced chemical equation in the input field using following rules and click 'Balance' (for example: ca3(po4)2(s) + h2so4(aq) = h3po4(aq) + caso4(s) ).

Las reglas para introducir las ecuaciones

• A valid equation must have the same elements on both sides of the equation
• Los espacios entre los símbolos y las fórmulas se ignoran, por ejemplo: ag no3 es idéntico agno3
• Se permite el uso de todos tipos de paréntesis, como por ejemplo: Na2Zn3[Fe(CN)6]2*9H2O
• Cuando se escriben iones, añadan simplemente la carga al final de la fórmula, como por ejemplo: Al3+, NH4+, SO42- o Hg2^2+
• Como flecha en la ecuación pueden utilizar la señal "=" o "-->" o "→".
• La entera ecuación se puede escribir con minúsculas. Los elementos, escritos correctamente (la primera letra escrita con mayúscula) el convertidor dejará sin cambios, de mismo modo como lo han escrito ustedes.
• To indicate the physical states you can use (s) for solid, (l) for liquids, (g) for gases, and (aq) for substances dissolved in water.

Ejemplos de ecuaciones químicas

Balanceo de reacciones redox

Two problems can occur when balancing redox reactions with mathematical methods:

1. Balancing equations of redox reactions by inspection or with a mathematical method (such as Gauss's elimination method) can create results that are mathematically accurate, but not chemically. This is because equations of redox reactions must also satisfy the electron balance, i.e. the number of electrons released in the oxidation reaction must be equal to the number of electrons recieved in the reduction reaction.

2. Redox equations are often written in such a way that water and its ions are left out. H2O, H+ or OH- (depending on the medium) can be added as necessary since its assumed the reaction occurs in water. Contrary to that, the mathematical method requires that all species participating in the reaction are explicitly stated.