58.0 mL of 4.65 mol/L of CuCl2 must be diluted to 2.45 mol/L. In order to do this, the final volume must be
mL. *
a. 1100 mL
b. 220 mL
c. 2200 mL
d. 110 mL

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.

so she was walking and she stepped on warm jeffy , uh uh uhh dadye i just pooped my pants