Question

question 16
1.66 pt
rust (fe₂o₃)
element
compound
mixture
element
compound
mixture

Explanation:

A compound is a substance made up of two or more different elements chemically combined in a fixed ratio. Rust ($Fe_2O_3$) is composed of iron (Fe) and oxygen (O) elements in a specific ratio, so it is a compound. An element is a pure substance made of only one type of atom, and a mixture is a combination of two or more substances that are not chemically combined.

Answer:

B. Compound