A purple liquid is heated with fire. Eventually, it starts to boil. A white gas appears, leaving behind a purple salt-like solid. What type of matter is the purple liquid? Explain your answer.

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

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.

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