two
There are two hydrogen atoms in one molecule of water (H2O).
There are two atoms of hydrogen in a water molecule, but no hydrogen molecules.
H2OCount two atoms hydrogen in one molecule of water.
there are 2 atoms of hydrogen in water
The chemical formula of water is H2O; water contain two hydrogen atoms.
A water molecule (H2O) contain two hydrogen atoms.
the water molecule is H2O so it has 2 atoms of hydrogen in it. (plus an atom of oxygen)
There are three atoms in a molecule of water. One oxygen atom and 2 hydrogen atoms. The simplified form for the molecule of water is H2O which is a coded form for the 2 hydrogen and 1 oxygen atoms that make up the molecule.
In one molecule of water there are 3 atoms. One oxygen atom and two hydrogen atoms.
hydrogen oxide is water or H2O and has two hydrogens
There are 2 hydrogen atoms present in each water molecule. This can be seen from the formula for water H2O -- this tells us there are 2 atoms of hydrogen combined with 1 atom of oxygen
Hydrogen oxide (also known as water) contains two hydrogen atoms and one oxygen atom in each molecule.