Question

identify each description below as an element, compound, heterogenous mixture, or homogenous mixture: 1) identical atoms 2) uniform structure 3) not uniform in structure 4) different atoms chemically combined 5) cannot be broken down 6) can be broken down through difficult chemical process 7) can be broken down through easy physical process 8) can be broken down through a more difficult physical process 9) evenly distributed 10) not evenly distributed

Explanation:

To solve this, we recall the definitions:

• Element: Made of identical atoms, cannot be broken down chemically.
• Compound: Made of different atoms chemically combined, can be broken down chemically.
• Homogeneous Mixture: Uniform structure, evenly distributed, broken down by difficult physical processes.
• Heterogeneous Mixture: Not uniform, not evenly distributed, broken down by easy physical processes.

1) identical atoms

An element consists of only one type of atom.

Answer:

Element

2) uniform structure

Homogeneous mixtures (and pure substances) have uniform structure. But since mixtures are considered, homogeneous mixtures (e.g., solutions) have uniform structure.