Question

state three reasons why you think air is a mixture and water is a compound.

Answer 1

air is not a mixture because of scientists freezing it and finding different liquids, it is a mixture because the compounds that make upair e.g. oxygen (o2), Carbon dioxide (co2) and the most important Nitrogen which is an element and makes up 78.09% of air are not chemically bound in the way that compounds are ...

Answer 2

Air is a mixture because:

1) Its components vary from place to place

2) Its components continue to vary

3) Its components can be seperated by physical means

Water is a compound because:

1) Its components are bound together chemically

2) Its components always occur in a fixed proportion -- be it tap water, sea water, etc.

3) Its components cannot be seperated by physical means.