What types of energy do you think it may have been Involved it when the bunsen burner was lit with the spark from the Van de Graaff Generator ?

Compare and contrast physical changes with chemical changes.

How many atoms are there in 5.70 mol of mg

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.