2006-11-11 04:19:31 · 7 answers · asked by Lindsay A 1 in Science & Mathematics ➔ Chemistry
Without doing a rigorous calculation I will guesstimate that it will be Oxygen.
If body is 70% water, Oxygen in water is ~90% so oxygen will be ~63% in body.
2006-11-11 04:52:18 · answer #1 · answered by Dr. J. 6 · 0⤊ 0⤋
the human body is composed of MORE than 60% oxygen by MASS. most of this oxygen is due to the water that constitutes a larger majority of our weight. water is 89% oxygen.
the 70% water content of human bodies does not include the water in fats. we are probably 70-75% water. multiply by 89%, and we are roughly 64-66% oxygen.
2006-11-11 04:26:59 · answer #2 · answered by Anonymous · 1⤊ 0⤋
See
http://chemistry.about.com/cs/howthingswork/f/blbodyelements.htm
2006-11-11 04:22:46 · answer #3 · answered by rscanner 6 · 0⤊ 0⤋
While, indeed, we have great masses of water in us (giving us all that H and O) and dissolved O2 and CO2 in our blood (giving us more O), we are still Carbon based life forms.
So major as to amount? Oxygen
Major as to importance? Carbon (although with out all of them it really wouldn't matter because . . .)
Get an "A".
2006-11-11 05:39:09 · answer #4 · answered by teachr 5 · 0⤊ 0⤋
Probably Hydrogen. The human body is largely comprised of water, which is formed from two hydrogen and one oxygen atom per water molecule.
2006-11-11 04:28:50 · answer #5 · answered by IrritableMom 4 · 0⤊ 1⤋
Carbon is the element that is the majoy component of the human body
2006-11-11 04:34:41 · answer #6 · answered by gordon_benbow 4 · 0⤊ 1⤋
C (water although makes up of 70% of human body, it is not an element)
2006-11-11 04:22:27 · answer #7 · answered by sky_blue 1 · 1⤊ 3⤋