Question

Give three examples of reactions between metals and water, to show that different metals have different reactivities.

Answer 1

Hey dear,

● Reaction of metals with water -
- Usually metals react with water to form a metal hydroxide with release of hydrogen gas.

According to their specific reactivity, each metals react differently with water.

1) Sodium literally explodes on contact with water.
Na + H2O ---> NaOH + H2

2) When hot boiling water is poured over magnesium metal, magnesium hydroxide is formed.
Mg + H2O ---> Mg(OH)2 + H2

3) Iron reacts with steam only to give its hydroxide.
Fe + H2O ---> Fe(OH)3 + H2

4) Gold/Silver doesn't react with water in any state.

Hope this helps you...

Answer 2

Answer:

Explanation:

Cold water reaction

Na, K (sodium , potassium )

Hot water reaction

Ca , Mg (calcium, magnesium)

Steam reaction

Al  ,   Fe (aluminium, iron)