Chemistry

5. Displayed or depicted in a specific way.
6. Providing information or reasons to clarify a concept.
7. Small units that make up matter.
10. The relationship between two quantities, often expressed in terms of a fraction.
11. Substances composed of two or more elements or compounds physically mixed together but not chemically combined.
12. Substances composed of two or more elements chemically combined in a fixed ratio.
13. Set or established in a stable manner; not subject to change.
15. Combinations of symbols that show the elements present in a compound and the ratio of their atoms (e.g., H2O for water).

1. Relating to substances and processes involved in chemistry.
2. Representing or showing a system using diagrams, visuals, or other methods.
3. How particles are organized or positioned relative to one another in a substance.
4. Formulas: Notation that indicates the type and number of atoms present in a molecule of a substance.
8. Identifying or acknowledging the existence of something.
9. Representations used to stand for elements (e.g., H for hydrogen).
14. Substances that consist of only one type of atom, which cannot be broken down into simpler substances.