Answer:
There is no chemical combination of the substances in a mixture, so they retain their physical properties. There is the same composition throughout a homogeneous mixture. The structure of a heterogeneous mixture differs.
Explanation:
Answer:
588 J
Explanation:
PE (potential energy) = (mass) x (gravity) x (height)
mass = 12 kg
gravity = 9.8m/s^2
height = 5 m
PE = (12) x (9.8) x (5) = 588 J (Joules)
The electric charge or electric force that exists inside of an atom occurs as a result of the protons and electrons that exist within the atom. Protons have a positive charge and electrons have a negative charge. These electrons and protons exert a force on any other particle with a charge creating electric force within the atom.
(A "release" of a chemical means that it is emitted to the air or water, or placed in some type of land disposal.)
