Which of the following two has more training? Group of answer choices

Registered Dietitian Nutritionist

Registered Dietitian Technician

Executive chef

Sous chef

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

Anybody wanna ? (picture included? )

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?