Question

*URGENT*

Substances dissolve through three processes:

I. ionization

II. dissociation

III. dispersion

Which lists the dissolving processes that change the identity of a substance?

A) II and III
B) I
C) I and II
D) I and III
E) I, II, and III

Answer 1

B) IONIZATION

Step-by-step explanation:

Ionization occur when substance gain or lost the electron and form the ions.

when substance are changed into ions their identity changed.

So we can say that it is a chemical change and substance lost their identity.

For example:

The polar covalent compound HCl ionized and gives H⁺ and Cl⁻ ions. These ions have different properties from parent compound HCl.

While in case of dissociation identity remain same. Consider the dissociation of ionic compound they just dissociate into respective ions . This is a physical change and identity of substance remain same.

For example:

Ionic compound sodium chloride dissociate into sodium(Na⁺) cation and chloride(Cl⁻) anion.

while in case dispersion particles are dispersed into continuous phase without losing their identity.