Water! Water molecules contain 2 atoms of Hydrogen and one of Oxygen
There is lots of hydrogen in the US. It is the most abundant substance in the universe.
Hydrogen: stars universes every thing has it
The question is flawed. Substance can mean element or molecule. I'll go with molecule since organic simply means carbon atoms are present. Hydrogen dioxide is the most abundant inorganic "substance".
The most abundant element where? It is the most abundant element in Earth's crust. The most abundant element on planet Earth, on the other hand, is iron, while the most abundant element in the Universe is hydrogen.
Tritium is the most abundant hydrogen isotope
The most common substance found in the sun is hydrogen. Approximately 74% of the sun's mass is made up of hydrogen, which fuels nuclear fusion reactions in its core, generating heat and light. Helium is the second most abundant element in the sun.
Hydrogen is the most abundant element in the universe.
helium is the gas which makes most of the sun
The lightest and most abundant element in the entire Universe is hydrogen. Hydrogen has an atomic mass of nearly one.
Hydrogen is the most common element in the universe, and in the Sun.
The most abundant element in the universe is hydrogen.
That is hydrogen.