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Step-by-step explanation:

B) 12

Step-by-step explanation:

Range is when u subtract the minimum value to the maximum value:

1st period:

Max = 98

Min = 60

Range = max - min

Range = 98 - 60

Range = 38

2nd period:

Max = 96

Min = 70

Range = 96 - 70

Range = 26

Difference between the ranges of the 2 periods:

38 - 26 = 12

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.

i can't read the graph

step-by-step explanation: