tate whether the following changes are physical or chemical for rancidipication fixation of water 2 tearing of paper 3 rusting of iron 4 electrolysis of water

Physical change : tearing of paper, fixing of wtaer

Chemical change:  rusting of iron ,  electrolysis of water, Rancidification

Explanation:

Physical change is a change in which there is no rearrangement of atoms and thus no new substance is formed. There is only change in physical state of the substance.

Example:  tearing of paper, fixing of wtaer

Chemical change is a change in which there is rearrangement of atoms and thus new substance is formed. There may or may not be a change in physical state.

Example: rusting of iron ,  electrolysis of water, Rancidification

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.

hurricanes form in warm water