Sodium would react very quickly with water to produce hydrogen gas in an ... Gold (Au) is one of the least reactive metals and does not react with oxygen, even when heated. The table shows these ...

A small piece of sodium metal is placed in a flask of chlorine gas. 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 ...

Small pieces of calcium are placed in water. The calcium reacts with the water but does not get nearly as hot as either the sodium or potassium. Also, the calcium hydroxide produced forms a white ...