The unbalanced equation is: Al + O2 ➡️ Al2O3
To balance the equation, we need to ensure that the same number of atoms of each element is present on both sides of the equation.
Step 1: Count the number of atoms of each element on the left and right side of the equation:
Left side: Al = 1, O = 2
Right side: Al = 2, O = 3
Step 2: Balance the number of atoms of each element by adjusting the coefficients of the compounds:
Al + O2 ➡️ 2Al2O3
Now, let's check if the equation is balanced:
Left side: Al = 2, O = 2
Right side: Al = 2, O = 6
The equation is now balanced, with 2 atoms of aluminum and 6 atoms of oxygen on both sides of the equation.
Therefore, the balanced equation is: 2Al + 3O2 ➡️ 2Al2O3.