need help with 1-4 i don't really understand them and if you can give me work as well that would be great thank you

Mm pues la verdad si quisiera responderte pero no le entiendo a eso desde cuarto así que bye

4.

Step-by-step explanation:

148 x (x) + 42 = 345

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.