Question

identify the mixtures from the following oxygen co2 hydrogen air​

Answer 1

Answer:

ANSWER

The mixture consists of constituents in indefinite proportion. It may change over time. Air has 78% Nitrogen, 21% Oxygen and 1% other constituents such as CO

2

, water vapour etc. About 100 years ago the proportion of CO

2

in the air was about 0.029% and now it is 0.035%. Thus we see that it's proportion has changed.

Answer 2

Answer:

Air is the right answer.