Which of the following substances is an element?
A)Iron
B)Water
C)Sodium chloride
D)Glucose

Question

Quizplus · Accepted Answer

Iron is a pure substance that cannot be decomposed into simpler substances. Therefore, it is an element. Water (B) is a compound made up of hydrogen and oxygen. Sodium chloride (C) is also a compound made up of sodium and chlorine ions. Glucose (D) is a carbohydrate and a compound made up of carbon, hydrogen, and oxygen.

Which of the Following Substances Is an Element