QRE Question 8
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Atest used to predict college readiness is given to two random groups of students, Group A and Group B. The results for the groups are shown below.
Group A 16, 18, 18, 19, 19, 19, 20, 21, 21, 21, 22, 23, 26, 26, 27, 28, 29, 29, 30, 31
Group B 16, 16, 17, 19, 20, 21, 21, 21, 23, 23, 23, 24, 24, 25, 27, 27, 29, 30, 30, 30
Which of these statements are true? Choose all that are correct.

answer:

the position of equilibrium will shift to the left.

step-by-step explanation:

the general equation for the dissociation of a weak base is

b + h₂o   ⇌   bh⁺ + oh⁻

according to le châtelier's principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.

if you apply a stress by adding more bh⁺ or oh⁻,   the system will respond by moving in a direction that gets rid of the added ions.

the position of equilibrium will shift to the left, forming more of the undissociated base.

no not all of them.

step-by-step explanation:

some of them have a square base.

1/4 because there is 4 grades.