MediumEasy Riddle
Without this, H2O would just be 2O.
Riddle
Without this, H2O would just be 2O.
Choose an answer
A.Oxygen
B.Carbon
C.Helium
D.Hydrogen
Hint: It's a word with 8 letters, starting with "H".
Answer
Hydrogen
Why this is the answer
Water's chemical formula, H2O, needs the 'H' for hydrogen -- remove it and only the two oxygen atoms remain.
This riddle is filed under Easy Riddles and rated Medium.