Which statement describes the law of conservation of energy?
O
A. Ener
can only change from nuclear energy to chemical energy
O
B. The tal energy in a system can only in
ease.
O
C. There is only one form of energy.
D. When an energy transformation happens, no energy is destroyed
or created

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.