Which of Figures I-IV Represent(s)the Result of Mixing Aqueous Solutions

question 56

Multiple Choice

Which of Figures I-IV represent(s) the result of mixing aqueous solutions of Na₂S and NiCl₂ in which the ion product Q_c > K_sp for the insoluble product? (C = cation,A = anion)

• A)both I and II
• B)only I
• C)only II
• D)only III
• E)only IV

---

Definitions:

Iris

The colored part of the eye surrounding the pupil, responsible for controlling the diameter and size of the pupil.

Lamellated Corpuscle

A specialized nerve ending found in the skin and mucous membranes, responsible for sensing pressure and vibration.

Papillary Layer

The uppermost layer of the dermis, directly underneath the epidermis, rich in capillaries and nerve endings.

Dermis

The thick, inner layer of skin beneath the epidermis, containing nerve endings, sweat glands, hair follicles, and blood vessels.