The Questions Below Refer to the Following System

question 22

Multiple Choice

The questions below refer to the following system:
Co(H₂O) ₆²⁺ + 4 Cl^- CoCl₄^2- + 6H₂O
(pink)
(blue)
When cobalt(II) chloride is added to pure water,the Co²⁺ ions hydrate.The hydrated form then reacts with the Cl^- ions to set up the equilibrium shown here.
-Which statement below describes the change that the system will undergo if hydrochloric acid is added?

• A)It should become more blue.
• B)It should become more pink.
• C)The equilibrium will shift to the right.
• D)The equilibrium will shift to the left.
• E)Two of these.

---

Definitions:

Menstrual Cycle

The monthly series of changes a woman's body goes through in preparation for the possibility of pregnancy.

Irritability

A state of increased sensitivity or reactivity to stimuli, often resulting in negative emotional responses.

Delta Waves

Slow brain waves that are associated with deep sleep and aid in healing and regeneration.

NREM Sleep

Non-Rapid Eye Movement sleep, which is characterized by slower brain waves and is divided into three stages, representing a deeper level of sleep as one progresses from stage 1 to stage 3.