Every element in the periodic table is represented by a unique chemical symbol, like O for Oxygen or Mg for Magnesium.Chemical formulas represent compounds or elements where more than one atom are ...

The new substance is called a compound. Other compounds are made from different combinations of atoms, like water… carbon dioxide… and table salt. And that’s it! Nearly everything in this ...

A little water helps expose the sodium so it can react with the chlorine gas. The reaction releases a lot of heat as the ionic compound sodium chloride is formed. A sodium and chlorine atom are near ...