Gasoline is a mixture of the alkanes and unlike many chemicals, can be stored for long periods and transported without problem. It is only when ignited that it has enough energy to continue reacting. This property makes it difficult for alkanes to be converted into other types of organic molecules.
Recovery from being spayed is usually around 10 days. My kitten was back to her usual self in three days but it took 10 days for the incision to heal enough for the stitches to come out.
A healthy kitten can be spayed or neutered once it's eight weeks of age and two pounds in weight. Sadly, though, a lot of vets are behind the times and still wait till six months. Considering kittens can reach sexual maturity as early as FOUR MONTHS this is a bit ridiculous.