Question

What is Hydrogen????????
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Answer 1

Answer:

i

Explanation:

the speed at which something moves in a particular direction

Answer 2

Answer:

Hydrogen is the chemical element with the symbol H and atomic number 1. Hydrogen is the lightest element. At standard conditions hydrogen is a gas of diatomic molecules having the formula H₂. It is colorless, odorless, non-toxic, and highly combustible