How do organisms that are not autotrophs get they energy they need to sustain life

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.