When ice melts and becomes liquid water, it has undergone a
a. chemical change
b. chemical property
c. physical changed. physical property?

Why do cells appear different in distilled water than they do in 10% salt water?

Aperfume bottle is dropped in the corner of a room. the odor of the perfume can be detected on the other side of the room. which statement best describes this observation?

Which sample at stp has the same number of atoms as 18 liters of ne at stp