When fat comes in contact with sodium hydroxide, it produces soap and glycerin. Determine whether this is a physical change or a chemical change. Explain your

Chemical change

Explanation:

Physical change is a change where there is a change in size , shape etc and no new products are formed.

Chemical change is a change where there is a change in chemical composition as new products are formed.

Example: Formation of soap and glycerin from fat and sodium hydroxide is a chemical change as the chemical bonds are getting rearranged to form new products.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.