In the process of balancing the equation
Al + Cl₂ → AlCl₃
Student I writes: Al + Cl₂ → AlCl2
Student II writes: Al + Cl₂ + Cl → AlCl₃
Student III writes: 2Al + 3Cl₂ → 2AlCl₃
Is the approach of Student I valid? Student II? Student III? Explain.

There are 3 chlorine on product side and only 2 chlorine on reactant side. Thus multiply chlorine on reactant side by 3 and chlorine on product side by 2 to make them equal.

Al + 3Cl₂ → 2 AlCl₃

Now, there are two Al atom on product side but only one Al atom on reactant side. Thus, multiply Al by 2 on reactant side.

2Al + 3Cl₂ → 2AlCl₃

Balanced reaction: 2Al + 3Cl₂ → 2AlCl₃

So, student lll approached a right equation , as it is a balanced equation

What is the balance formula equation?

A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products. In other words, the mass and the charge are balanced on both sides of the reaction

What is a full balanced equation?

The global balance equations (also known as full balance equations) are a set of equations that characterize the equilibrium distribution (or any stationary distribution) of a Markov chain, when such a distribution exists

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In the process of balancing the equation Al + Cl₂ → AlCl₃ Student I writes: Al + Cl₂ → AlCl2 Student II writes: Al + Cl₂ + Cl → AlCl₃ Student III writes: 2Al + 3Cl₂ → 2AlCl₃ Is the approach of Student I valid? Student II? Student III? Explain.

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In the process of balancing the equation
Al + Cl₂ → AlCl₃
Student I writes: Al + Cl₂ → AlCl2
Student II writes: Al + Cl₂ + Cl → AlCl₃
Student III writes: 2Al + 3Cl₂ → 2AlCl₃
Is the approach of Student I valid? Student II? Student III? Explain.