300.0 mL of a 0.495 M solution of NaI is diluted to 700.0 mL. What is the new concentration of the solution

Iknow #2 is d. i just need to know why

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.

What type of electromagnetic radiation has a shorter wavelength than blue light