Question

the chemical formula for methane is and a model of its structure is shown. the model of methane shows mixture atom molecule solution

Explanation:

A molecule is a group of atoms bonded together. Methane ($CH_4$) has one carbon atom and four hydrogen atoms bonded, forming a molecule. A mixture is a combination of substances. An atom is a single particle (like just C or H alone). A solution is a homogeneous mixture (usually liquid). Since methane's model shows bonded atoms (C and H), it's a molecule.

Answer:

molecule