When the concentration of a system is changed:
The concentrations change to maintain the original value of K.
The mass action expression changes exponents.
Either the numerator or the denominator of the mass action expression will change.
The equilibrium constant changes.
EVT
ITATION

The concentrations change to maintain the original value of K.

Explanation:

When the concentration of a system is changed, the system adjusts in order to preserve the original value of the equilibrium constant K.

According to Le Chatelier's principle;

i'm hoping this is like a multiple answer question. if it is then it would be, the location of the plants and also the height of the plants since one she wants to know where in her garden the chamomile grows best. but also to see which plants grew better in the location she also has to measure the plant itself. (if you can only choose one answer than it would be c).

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.