I want the solve of this problem

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

Why do cells appear different in distilled water than they do in 10% salt water?

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.