How many moles are there in 45.0 g of sulfuric acid, H2 S04

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

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.

How many neutrons does an element have if its atomic number is 50 and its mass number is 166