Where did One Of The Elements Found In Water Not Oxygen appear in the Game?

It appeared on New York, New York! Group 369 Puzzle 4

One Of The Elements Found In Water Not Oxygen

CodyCross One Of The Elements Found In Water Not Oxygen Solution

This question is part of CodyCross New York, New York! > Group 369 > Puzzle 4.
Answers of One Of The Elements Found In Water Not Oxygen might change from time to time on each game update.

One Of The Elements Found In Water Not Oxygen

Hydrogen

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