Eli5: If water is 2 thirds oxygen, why do we need lungs?
In: Chemistry
We need oxygen in the form of two free atoms of oxygen bonded only to themselves, not chemically bonded to other things. Elements bond to form substances with dramatically different qualities and behaviors, so just because something contains an element doesn’t mean it is equivalent to that element alone or other substances which also contain that element.
The study of how those elements behave, bond, and interact is called “Chemistry”.
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