Name any two metals that react with cold water very quickly. Write the products formed when these metals react with cold water.

Explanation

Lithium, Sodium, Potassium, Calcium reacts with cold water very quickly. All of these metals react vigorously or even explosively with cold water. In each case, a solution of the metal hydroxide is produced together with hydrogen gas.
`2x(s) + 2H_2O (l) to 2xOH (aq) + H_2 (g)`
Ex: `2K (s) + 2H_2O (l) to 2KOH (aq) + H_2(g)`
Potassium Water Potassium hydroxide Hydrogen