How to calculate increase percentage of oxygen
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Answer:
All the matters are made up of particles. The size of particles in a matter is extremely small as a few masses of matter can have millions of tiny particles. A pure matter has all the constituent particles same in their chemical nature or we can say a pure substance consists of a single type of particle. On the other hand, mixtures are constituted by more than one kind of substance. So, air is a matter which is not pure but rather is a mixture of different types of substance such as gases, water vapour, etc.
The composition of air is divided into three categories namely major component, minor component and trace components. Major components of air are composed of nitrogen gas, oxygen gas and water vapour. Minor component of air consists of argon and carbon dioxide gas. Substances like helium, neon, krypton, methane, carbon monoxide, oxide of nitrogen, sulphur dioxide, ammonia, ozone, etc all form the trace component of air.