Physical and chemical properties of gasoline?

What are gasoline's physical properties?

• Answer:

  Gasoline is a clear liquid slightly less dense than water that gives off the sickeningly sweet smell of aromatic hydrocarbons (oil). Gasoline is used in cars due to its high energy to weight ratio, and its high flammability, which makes it dangerous to handle carelessly. Gasoline only requires a spark to set it off and, unlike most hydrocarbons (oil), gasoline tends to explode rather than burn. This property makes it hard to contain a gasoline fire because as soon as it ignites, it spreads rapidly. Gasoline is one of the purest forms of petroleum - second only to aircraft fuel - which makes it burn much cleaner than its diesel counterpart. However, since gasoline is a non-renewable fuel source, prices can drastically fluctuate with production costs, making it an unstable yet reliable fuel.