Balance the following the chemical equation:
Al + O2 → Al2O3
Blank 1:
Blank 2:
Blank 3:
Blank 1: 4
Blank 2: 3
Blank 3: Al + 3 O2 → 2 Al2O3
Blank 1: 4
Blank 2: 3
Blank 3: 2
The balanced chemical equation is:
4Al + 3O2 → 2Al2O3
To balance the chemical equation Al + O2 → Al2O3, we need to make sure that the number of atoms of each element is the same on both sides of the equation.
Blank 1: Al + O2 →
In this equation, we have one atom of aluminum (Al) on the left side. To balance it, we need to add a coefficient in front of Al. We can start with 2Al.
2Al + O2 →
Now let's move on to the oxygen (O) atoms. On the left side of the equation, we have 2 oxygen atoms from O2. To balance this, we need the same number of oxygen atoms on the right side. Since O2 contains 2 oxygen atoms, we need 2 O2 molecules.
2Al + 2O2 →
Blank 2: 2Al + 2O2 →
Now let's consider the aluminum (Al) atoms again. We have 2 aluminum atoms on the left side and 2 aluminum atoms in Al2O3 on the right side. This means that the aluminum atoms are already balanced.
2Al + 2O2 →
Finally, let's check the oxygen (O) atoms again. On the left side, we have 4 oxygen atoms (2 from each O2 molecule). On the right side, we have 3 oxygen atoms in Al2O3. To balance this, we need to add another O2 molecule.
2Al + 3O2 →
Blank 3: 2Al + 3O2 → Al2O3
Now the equation is balanced with 2 aluminum atoms, 6 oxygen atoms, and 3 oxygen atoms on the left and right sides, respectively.