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:

A physical change is defined as the change in which a change in shape, size takes place. No new substance gets formed in these reactions.

A chemical change is defined as the change in which a change in chemical composition takes place. A new substance is formed in these reactions.

Thus when fat comes in contact with sodium hydroxide to produce soap and glycerin, it is termed as a chemical change.

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current