Question

Why are compounds different from single elements?


A
When elements form a compound, the bonds and structure of the elements change.

B
When elements form a compound, the masses of the elements increase.

C
When elements form a compound, the masses of the elements decrease.

D
When the elements form a compound nothing is different.

Answer 1

there is a law of mass of conservation in the first chapter of NCERT and according to that the mass of product and the reactant always be same but the changing in the bonds will change the structure of the compound

Answer 2

option (A) when elemrnt form