In the given chemical equation, What is the missing coefficient to balance the equation?1.)    2 N2O5 →    2 N2 +    ___ O2

The missing coefficient to balance the equation is 5. The balanced equation is: 2 N2O5 → 2 N2 + 5 O2.

Here's the step by step process:

1. Identify the types of atoms in the equation. Here we have Nitrogen (N) and Oxygen (O).

2. Count the number of each type of atom on both sides of the equation. On the left side, we have 4 Nitrogen atoms and 10 Oxygen atoms. On the right side, we have 4 Nitrogen atoms and 2 Oxygen atoms.

3. Add coefficients to the atoms on the right side to balance the number of Oxygen atoms on the left side. In this case, we add a coefficient of 5 to O2 on the right side to get 10 Oxygen atoms.

4. Check if the equation is balanced. The equation is balanced when there are equal numbers of each type of atom on both sides of the equation. Here, we have 4 Nitrogen atoms and 10 Oxygen atoms on both sides, so the equation is balanced.