The formula H₂O shows that water is made from two atoms of hydrogen (H) bonded to one atom of oxygen (O). Katie: Time for some science. And today it's a chemistry classic, the periodic table. And here ...

Part of Chemistry (Single Science) The nature of substances and chemical reactions This diagram shows that one carbon atom and two oxygen atoms combine to make up the units of carbon dioxide. Its ...

Chemistry should no longer remain a mystery. Anahita Saxena rustles up a formula that is sure to spark off a happy chemical reaction in your mind. Chemistry is the study of matter, of its fundamental ...