Matter

3. a liquid changes into a solid state as its temperature is lowered
5. uniform composition and properties throughout
6. process where one or more substances are transformed into entirely new substances with different chemical properties
8. a combination of two or more substances that are physically combined but not chemically bonded
10. a gas directly transforms into a solid without first becoming a liquid
12. a substance changes directly from a solid to a gas without passing through a liquid phase
14. components are not uniformly distributed and can be easily identified as separate parts or phases
16. the phase transition where a substance changes from a liquid state to a gaseous state, or vapor
18. heterogeneous mixture where solid particles are dispersed in a liquid or gas but do not dissolve
19. homogeneous mixture of two or more substances, where one or more substances (solutes) are uniformly dissolved in another substance (solvent)
22. transition of a substance from a gaseous state to a liquid state
23. symbolic representation that shows the types of atoms and their relative numbers within a chemical compound or substance

1. a substance changes from a solid state to a liquid state due to the absorption of heat energy
2. matter with a constant, definite composition
4. alters a substance's form or appearance but not its chemical composition
7. characteristic of a substance that nust be observed or measured by changing its chemical composition
9. a state of matter that lacks a definite shape and volume, instead expanding to fill any container it occupies
11. characteristic of a substance that can be observed or measured without changing its chemical composition
13. anything that has mass and that takes up space
15. composed of only one type of atom, which cannot be broken down into simpler substances by ordinary chemical means
17. a fundamental state of matter that has a definite volume but no fixed shape, conforming to the shape of its container
18. state of matter characterized by a definite shape and definite volume, with its constituent atoms, ions, or molecules held in fixed positions in a rigid structure
20. the smallest unit of matter that retains the chemical properties of an element
21. two or more different chemical elements are chemically bonded together in a fixed proportion