Answer:
A mixture.
Explanation:
The image contains two types of molecules: one with a blue centre and one with a green centre. They are both compounds, as they contain atoms of different elements that are chemically combined/ bonded to each other. As the molecules of the different compounds are not bonded to each other, the model must show a mixture.
A mixture: a combination of molecules of different elements and/or compounds that are not chemically combined e.g. salt dissolved in water.
An element: a substance containing only one kind of atom e.g. oxygen.
A compound: a substance containing two or more kinds of atoms (atoms of different elements) are chemically bonded to each other e.g. water.
