Question

why o2 goes into reaction when it is already satisfied?

Answer 1

o2 is always present in the air and even after satisfying itself it tries to oxidize many other metals especially coating iron with a flaky brown substance called rust

Answer 2

Explanation:

When the world woke up to COVID-19, the pandemic that has stalled our lives and thrown normalcy out of gear for the last few months, the widely reported symptoms were quite common in nature. It was often indicated that mild symptoms would mimic the regular flu, cold and cough and in serious cases, it could escalate into pneumonia, breathlessness.

Even as it started spreading across the globe, medical experts started witnessing a wide range of symptoms from diarrhea, loss of smell, taste, formation of clots in the tiny blood vessels. Despite frequent handwashing, staying indoors, maintaining social distancing, there seems to be no respite from this severely contagious infection.