Water is made up of hydrogen and oxygen.
Hydrogen is the lightest and most abundant chemical element.
Example sentence - The answer to the first question on the test is hydrogen.
hydrogen makes up 0.000055% of our atmosphere
"Hydrogen is the first element in the periodic table."
Hydrogen is the first element on the periodic table of elements. Hydrogen is also a gas.
Hydrogen and oxygen combined with a catalyst create water.
Hydrogen atom have three isotope which is hydrogen , deuterium , and tritium.
Hydrogen is the simplest element in the universe. Combining hydrogen and oxygen in a fuel cell would produce energy without pollution.
No. Hydrogen fuel cell is not a title. You would only capitalize hydrogen if it was at the beginning of a sentence, as I did with this one. Otherwise, you would say 'hydrogen fuel cell'.
what can we choose from
a life sentence
The chemical compounds having Carbon and Hydrogen only.
Monoacid has one replaceable hydrogen atom.