Question

-Write equations for the reactions of
(i) iron with steam.
(ii) calcium and potassium with water.

-Write the electron dot structures for sodium, oxygen and magnesium.
(ii) Show the formation of Na2S and MgCl2 by the transfer of electrons.
(iii) What are ions present in these compounds?

-Give reasons for the following
(i) Zinc oxide is considered an amphoteric oxide
(ii) Non-metals in general do not displace hydrogen from dilute acids
(iii) Metals conduct electricity.

Answer 1

Explanation:

Write equations for the reactions of

(i) iron with steam.

(ii) calcium and potassium with water.

-Write the electron dot structures for sodium, oxygen and magnesium.

(ii) Show the formation of Na2S and MgCl2 by the transfer of electrons.

(iii) What are ions present in these compounds?

-Give reasons for the following

(i) Zinc oxide is considered an amphoteric oxide

(ii) Non-metals in general do not displace hydrogen from dilute acids

(iii) Metals conduct electricity.