Question

with the help of equation explain the reaction of metal with 1)cold water 2)hot water 3)steam​

Answer 1

Answer:

Metals with cold water-

2Na + 2H2O -> 2NaOH + H2

Metals with hot water-

Mg + 2H2O -> Mg(OH)2+ H2

Metals with steam-

Zn + H2O -> ZnO+H2

Mark it as brainliest!

Answer 2

Answer:highly reactive metals Na and K react with cold water even to give metallic oxides: 2Na+H2O= Na2O + H2

Moderately active metals like Calcium , Magnesium react with hot water give CaO and MgO: M+H2O=MO+ H2 [M= bivalent metal eg Ca]

Mildly active iron etc react with  steam giving ferric oxide: 2Fe + 3H2O = Fe2O3+3H2

Explanation:

Reactivity of Metals decreases , heat energy is needed to execute reaction and so cold---> hot---> steam