Stevin product Calculate (x + 9) (x + 12): a)x² - 21x - 108 b)x² - 21x + 108 c)x² + 21x + 108 d)x² + 21x - 108 e)x² - 21x - 108

The answer is C.

Step-by-step explanation:

You have to apply Distributive Law :

So for this question :

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.