Using the electronic balance method, create an equation for the reaction proceeding according

Using the electronic balance method, create an equation for the reaction proceeding according to the scheme: P + HNO3 + H2O – H3PO4 + NO ↑

1.Write the equation of the reaction indicating the oxidation state of each of the elements participating in the chemical reaction:

P [0] + H [+1] N [+5] O3 [-2] + H2 [+1] O [-2] → H3 [+1] P [+5] O4 [-2] + N [ +2] O [2] ↑

2. Let us write out the elements that have changed the oxidation state, separately in the form of an electronic balance:

P [0] – 5e [-1] → P [+5]

N [+5] + 3e [-1] → N [+2]

Since phosphorus loses 5 electrons, and nitrogen gains 3 electrons, then for balancing it is necessary to apply a factor of 3 for phosphorus and 5 for nitrogen.

3. Now, based on the obtained coefficients, we begin to balance the entire equation, taking into account the number of atoms participating in the chemical reaction:

3P + 5HNO3 + 2H2O → 3H3PO4 + 5NO ↑