Water

Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is essential for the survival of most known forms of life. It is a molecule composed of two hydrogen atoms and one oxygen atom, with the chemical formula H2O. Water is found in a variety of natural environments, such as oceans, rivers, lakes,…

Alkali and Alkaline earth metals-reactivity towards air

Alkali metals (Group 1 of the periodic table) and alkaline earth metals (Group 2 of the periodic table) are highly reactive towards air. Alkali metals such as sodium, potassium, and lithium, react vigorously with air to form oxides. The reaction of alkali metals with air is exothermic, which means it releases a large amount of…