Which of the following is called the master gland?
a. pancreas
b. thyroid
c. pituitary
d. adrenal

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

the answer is definitely a