Answer: Yes I-P-Cl = 90
Explanation:
This is because the angle formed between I-P-Cl is perpendicular hence the angle is 90°
The atomic mass is the average of the isotopes of the element meaning most averages of isotopes will not be whole numbers
Answer: possibly diffusion
Explanation:
all particles are in motion unless at a certain degree so they'd spread throughout the room diluting as they continue to spread out.
I can’t see the picture for some reason but if I were to guess, I would say Pangea.