Selma wants to know if seventh grade students prefer to do their math homework in silence or with background music. She polled
the 30 students in her music class. Ten students preferred to do their math homework in silence, and twenty students preferred to
do their math homework with background music
What type of sampling is demonstrated in the situation above?
A
negative sampling
OB. census
c. convenience sampling
D. random sampling

the answer C. convenience sampling

Step-by-step explanation:

i just took a test

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.