Two liquids are shaken together in a test tube to produce a uniform liquid that does not separate into layers. which of the following best describes the behavior of the above pair of substances?

soluble
insoluble
miscible
immiscible

Which of the following statements is true? a. most heat energy is easily recovered and used for useful actions. b. friction causes molecules to vibrate more slowly. burning air and gasoline in an c. engine changes chemical energy into mechanical energy. it is impossible to d. change mechanical energy into mechanical energy.