Is bronze homogeneous or heterogeneous

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.

Building glycogen from glucose molecules is an example of