Question

Identify the equations that show ionization. Check all that apply.

O
NaCl(s) →Nat(aq) + Cl¯(aq)
0
H3O+ (aq) + Cl(aq)
HCI(g) + H₂O(/)
O₂(g) → O₂(aq)
CO₂(g) + 2H₂O(1)→HCO3(aq) + H₂O+ (aq)
CaCl₂(s) → Ca²+ (aq) + 2Cl(aq)

Answer 1

The ionization process is represented by the equations where NaCl and CaCl₂ in solid form dissolve in water and dissociate into their positive (Na+ and Ca2+) and negative (Cl­) ions.

Step-by-step explanation:

To identify the equations that show ionization, we are looking for those that depict a solute dissolving in water and breaking up into its constituent ions.

• NaCl(s) → Na+(aq) + Cl­­(aq)
• CaCl₂(s) → Ca2+(aq) + 2Cl­(aq)

The compounds NaCl and CaCl₂ when in solid form (indicated by the (s) next to the compound), upon dissolving, separate into their respective positive (cation) and negative (anion) ions, which is the process of ionization.