You need to moles of potassium chloride in order to perform a chemical reaction explain how you would figure out how much you needed in the lab and how you were measured it out (would it be by mass, volume of molecules?)

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.

all eukaryotic cell have mitochondria : )

2b2t

explanation:

2b2t