Part C. Rank the following hydrogen peroxide molecules from the highest to lowest mass.
Rank from highest to lowest molecular mass. To rank items as equivalent, overlap them.
There are three naturally occurring isotopes of hydrogen:
protium (ordinary hydrogen): 1H, deuterium (heavy hydrogen): 21H or D, and tritium: 31H or T.
There are three naturally occurring isotopes of oxygen:
oxygen-17: 17O, and 178O
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