水素はそれ自体としては自然界に存在しない。の英語

Hydrogen does not exist as such in nature.

Water is made up of hydrogen and oxygen.

Water is made of hydrogen and oxygen.

Water is comprised of hydrogen and oxygen.

Water consists of hydrogen and oxygen.

Water consists of hydrogen and oxygen.

Water is composed of oxygen and hydrogen.

Water consists of hydrogen and oxygen.

Water consists of hydrogen and oxygen.

Hydrogen combines with oxygen to form water.

Water is composed of oxygen and hydrogen.

Hydrogen and oxygen combine to form water.

an isotope of hydrogen, called deuterium

Dehydrogenase removes hydrogen from some substances.

Water contains hydrogen and oxygen.

Water is a compound of hydrogen and oxygen.

Hydrogen and oxygen combine to form water.

Oxygen and hydrogen make water.

a gaseous element called hydrogen

Water can be decomposed into oxygen and hydrogen.

This substance is mostly composed of hydrogen and oxygen.

The atomic number for hydrogen is 1.

Water is a compound of oxygen and hydrogen.

You can't burn anything without oxygen.

You cannot burn anything without oxygen.

an era when the hydrogen atom is used as an energy source

A molecule of water is made up of one oxygen and two hydrogen atoms.

a radioactive isotope of hydrogen

an atom of hydrogen

A water molecule has two hydrogen atoms and one oxygen atom.