Is Water a Pure Substance?

Water is a compound that contains two different elements: hydrogen and oxygen. When salt is added into water, it becomes a mixture. Since it has the same features all throughout, it is called a homogeneous mixture or solution. This is in contrast with a heterogeneous mixture. Water can be physically segregated from salt via methods such as filtration. Water, which is colorless and odorless, has a freezing point of 32 degrees Fahrenheit and a boiling point of 212 degrees Fahrenheit.