HELP ME WITH THIS PLEASE :)

It's 12

Step-by-step explanation:

your welcome

1) F

2) C

3) A

4) H

Step-by-step explanation:

1)

P = a + b + c + d

P = 7x + 8 + 7x + 8 + 9x + 4 + 12x - 2

P = 35x + 18

2)

P = 4a

P = 4(4x - 8)

P = 16x - 32

3)

P = 5a

P = 5(2x - 4)

P = 10x - 20

4)

P = 4a

P = 4(7x + 2)

P = 28x + 8

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.