If an electric discharge produces 20.0 cm3 of ozone, O3 , how many cubic centimeters of oxygen are required

As you move from right to left on the periodic table the atomic radius fill in the blank

What happens when light is scattered?

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.