"Those H's and O's would love to get together and quench, making water, leaving the naked nitrogens to couple..."

"... making N2 which is essentially air. The chemical structure of ammonium nitrate is a depiction of air separating water. We never hear about spontaneous explosions of ammonium nitrate. Why is that?"

Answering that question and explaining why fertilizer bombs work ("because they do make air and water from ammonium nitrate").