What is the mass of 7.895 x 10^23 atoms Ag?
Answer in units of g.

141.4 g

Explanation:

N=Na(n)

N/Na=moles

moles*molarmass = mass

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.

the volume increases