A metal hydroxide and hydrogen gas form when a metal reacts with water. The metal hydroxide is a strong base. Reactions between a metal (especially an alkali metal) and water usually produce a violent scene. More »

All alkali metals and most alkaline earth metals react with cold water. The alkali metals are lithium, sodium, potassium, rubidium and cesium. The alkaline earth metals that react with water are magnesium, calcium, stron... More »

All six members of the alkali metals group react violently when exposed to water. When water touches alkali metals the reaction produces hydrogen gas and a strong alkaline solution, also known as a base. The further down... More »

Uncoated lithium metal reacts with water to form a colorless lithium hydroxide solution and hydrogen gas. The resulting solution is basic because of the resulting hydroxide ions. The reaction is both spontaneous and exot... More »

Sodium metal reacts with water to form hydrogen gas and sodium hydroxide in an exothermic reaction. Exothermic reactions produce heat, and the sodium and water reaction produces enough heat to cause the hydrogen gas and ... More »

Oxygen is a highly reactive and very abundant element that reacts with many things, including, as the University of California, Davis' ChemWiki points out, the reaction it has with hydrogen, which creates water. This ele... More »

Cobalt reacts with a sodium hydroxide solution to form a complex that has no charge. The hydroxide ions remove the hydrogen ion from the cobalt, leading to this reaction. More »