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 ...

Dip the clean nichrome wire in concentrated hydrochloric acid and then into the solid ionic compound which is sitting in a watch glass. Hold the loop with the solid ionic compound in the hottest ...

Today it seems self-evident that neurons make their electrical signals by opening gates of water-filled pores (ion channels) in the plasma membrane. But it was not always so. Remarkably ...