Answer:
Nitrogen is the main component because it comprises 78% of total air while oxygen comprises 21%

Answer/Explanation:
Dimitri Ivanovich Mendeleev
Please mark me BRAINLIEST! please!
The purpose of the analysis section of a lab report is to detail what
happened in the lab and what the outcome of the project was as a result
of said events.
There are three significant figures, this is because the zero before the decimal does not count
Answer:
Electromeric effect refers to a molecular polarizability effect occurring by an intramolecular electron displacement (sometimes called the 'conjugative mechanism' and, previously, the 'tautomeric mechanism') characterized by the substitution of one electron pair for another within the same atomic octet of electrons.