Question

A. Write formulae of:-
a. Magnesium hydroxide b. Potassium chloride c. Sodium carbonate


B. Define atomic mass unit

Answer 1

A. (1) Mg(OH)2
(2)KCl
(3)NaCl

B.It is a unit of mass used to express atomic and molecular weights, equal to one twelfth of the mass of an atom of carbon-12.


Hope it helps.

Answer 2

Hey friend!

Formulae of :

》Magnesium hydroxide - Mg(OH)2

》Potassium chloride - KCl

》Sodium carbonate - Na2CO3

ATOMIC MASS UNIT

》Atomic mass unit : A unit of mass used to express atomic and molecular weights, equal to one twelfth of the mass of an atom of carbon-12.

Hope it helps..!!