Question

question 5
what is vanillin (c₈h₈o₃) ?
(this is what smells like vanilla)
compound
element
homogeneous mixture
heterogeneous mixture
question 6

Explanation:

To determine what Vanillin ($\ce{C_8H_8O_3}$) is, we analyze the options:

• An element consists of only one type of atom. Vanillin has carbon, hydrogen, and oxygen atoms, so it's not an element.
• A homogeneous mixture is a mixture with a uniform composition, but Vanillin has a fixed chemical formula, so it's not a mixture.
• A heterogeneous mixture has a non - uniform composition, and again, Vanillin has a fixed formula, so it's not a heterogeneous mixture.
• A compound is a substance made up of two or more different elements chemically combined in a fixed ratio. Vanillin has carbon, hydrogen, and oxygen in a fixed ratio (as shown by its formula $\ce{C_8H_8O_3}$), so it is a compound.

Answer:

A. Compound