giving an orange flame and clouds of white sodium chloride. Damp litmus paper is bleached white when it is placed in chlorine. If damp-blue litmus paper is used, the paper turns red then white.

Sodium and chlorine react vigorously when heated, giving an orange flame and clouds of white sodium chloride.

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 ...

during a chemical reaction. The particles of the new substance have different properties to those of the starting particle, but the actual atoms remain the same. They are just joined to different ...