A molecule of water is made up of 2 atoms of hydrogen and 1 atom of oxygen. What percent of the atoms of a water molecule is oxygen?

1/3 = 33%

Numbers of atoms in molecule of water

1+2=3

1 atom of oxygen is:

(1/3)*100%=0.33333*100%=33.333%

Anonymous is right. It's 33.33%

Thank you both!!

To determine the percentage of oxygen atoms in a water molecule, we need to calculate the ratio of oxygen atoms to the total number of atoms in the molecule and then multiply it by 100.

In a water molecule, we have 2 atoms of hydrogen and 1 atom of oxygen. Therefore, the total number of atoms in a water molecule is 2 + 1 = 3.

To find the percentage of oxygen atoms, we divide the number of oxygen atoms by the total number of atoms and multiply by 100:

(1 oxygen atom / 3 total atoms) * 100 = approximately 33.33%

So, approximately 33.33% of the atoms in a water molecule are oxygen atoms.