Approximately what mass of CuSO4*5H20 (250 g mol^-1) is required to prepare 250 mL of 0.10 M copper(ll) sulfate solution?
A) 4.0 g
B
6.2 g
С
34 g
D
85 g
E
140 g

Identify one disadvantage to each of the following models of electron configuration: dot structures arrow and line diagrams written electron configurations type in your answer below.

Particles vibrate in a rigid structure and do not move relative to their neighbors.

All motion is caused by force? true or false