When the equation below is balanced and all coefficients are in the lowest, whole number ratio, the coefficients are:

Bi+O2⟶Bi2O3

4Bi + 3O2 = 2Bi2O3

4Bi + 3O2 ==> 2Bi2O3

To balance the equation Bi + O2 ⟶ Bi2O3, we need to make sure that the number of atoms on both sides of the equation is equal. Here's how you can balance this equation:

1. Start by counting the number of atoms for each element on both sides of the equation. On the left side, we have 1 Bi atom and 2 O atoms, while on the right side, we have 2 Bi atoms and 3 O atoms.

2. To balance the Bi atoms, we can place a coefficient of 2 in front of Bi on the left-hand side. Now we have 2 Bi atoms on both sides.

2 Bi + O2 ⟶ Bi2O3

3. After balancing the Bi atoms, we can balance the O atoms. Since we have 2 O atoms on the left side and 3 O atoms on the right side, we can place a coefficient of 3/2 or 1.5 in front of O2 on the left-hand side. However, we want to have whole number coefficients, so we can multiply the entire equation by 2 to eliminate the fraction.

4 Bi + 3 O2 ⟶ 2 Bi2O3

Therefore, when the equation is balanced and all coefficients are in the lowest whole number ratio, the coefficients are:
4 Bi + 3 O2 ⟶ 2 Bi2O3