All matter is involved in motion of some kind. True or false

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.