Question

why air is a mixture , not a compound​

Answer 1

Answer:

Air is a mixture and not a compound because: Air does not have a formula like a mixture, while compounds have a fixed formula. When air is formed by gases, there is no energy change. ... Components of air can be physically separated

Answer 2

Answer:

Air does not have a fixed formula like a mixture, while compounds have a fixed formula.  

Explanation:

Air does not have a fixed formula like a mixture, while compounds have a fixed formula.  When air is formed by gases, there is no energy exchange happening.  Properties of air are irregular and dependent on time and place.  Components of air can be physically separated, unlike compounds that need to be separated chemically.