Two changes are described below. A. A green banana turns yellow and ripens.
B. A layer of rust forms on an iron nail.
Which statement is true about the two changes? (5 points)
Both are chemical changes because new substances are formed.
O Both are physical changes because only the physical state of the substances change.
A is a physical change due to a change of state, but B is a chemical change because new molecules are formed.
ОО
A is a chemical change due to a change of state, but B is a physical change because new molecules are formed.