Question

Explain the reactions of metals with water. (Write 4 examples)​

Answer 1

Answer:

When a metal reacts with water, a metal hydroxide and hydrogen are formed. Calcium hydroxide is slightly soluble in water so once the solution is saturated, it starts to become milky as solid calcium hydroxide appear.

Answer 2

Answer:

Metals react with water to form hydroxide, hydrogen gas, and heat is evolved.  

Zn, Al, Fe react with water to form metal oxide.

Step-by-step explanation:

Metals form respective metal hydroxide and hydrogen gas when reacting with water.

Metal + Water ⇒ Metal hydroxide + Hydrogen

$Na + H_2O --> NaOH + H_2\\K + H_2O --> KOH + H_2\\Ca + 2H_2O --> Ca(OH)_2 + H_2\\Mg + 2H_2O --> Mg(OH)_2 + H_2$