Dry unpolluted air is usually considered to contain about : -

78.08% nitrogen
20.95% oxygen
an average of 0.247% water vapour (very variable)
& approximately 1% of other gases

these other gases are the noble gases consisting of : -
argon (0.93%)
neon (less than 0.01%)
helium (less than 0.01%)
krypton (less than 0.01%)
xenon (less than 0.01%)
radon (less than 0.01%)

regarding non-nobel gases, there is also carbon dioxide at 0.038%, and tiny traces of hydrogen.

Idon't really understand this can you me and show your work.☺☺[ chemistry b] subject [ electron transfer in lonic bonds]grade( 12)

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Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?