Define physical and chemical properties, provide three examples of each, discuss their reversibility, and explain the fundamental differences between them.

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock