Question

which process is an example of a physical change?
sodium metal and chlorine gas combined to form table salt
sodium metal and water combining to for a compound and gas
a peanut butter and jelly sandwich being digested
cutting carrots into pieces and mixed in a salad

Explanation:

A physical change is a change in which no new substances are formed. Cutting carrots into pieces and mixing them in a salad only changes the physical form of the carrots (size and shape) and there is no chemical reaction to form new substances. While sodium metal reacting with chlorine gas or water to form compounds (like sodium chloride or sodium hydroxide and hydrogen gas) are chemical changes as new substances are formed. Digestion of a peanut butter and jelly sandwich involves chemical reactions in the body to break down the food into simpler substances.

Answer:

Cutting carrots into pieces and mixed in a salad.