theres 7,2 hydrogen,4 oxygen,ang 1 sulphur
There are 7 atoms - 2 are hydrogen, 4 are oxygen, and 1 is sulphur (or 'sulfur' in American).
Sulfuric acid, H2SO4, has 7 atoms in each molecule: 2 H (hydrogen), 1 S (sulfur), and 4 O (oxygen).
there are seven atoms in one molecule of sulfuric acid.
2.1 moles sulfuric acid (6.022 X 10^23/1 mole H2SO4) = 1.3 X 10^24 atoms of sulfuric acid