Across
- 2. One that has a uniform composition throughout and always has a single phase; also called a solution.
- 4. A technique that uses a porous barrier to separate a solid from a liquid.
- 7. Anything that has mass and takes up space.
- 8. Gaseous state of a substance that is a liquid or a solid at room temperature.
- 10. A separation technique that produces pure solid particles of a substance from a solution that contains the dissolved substance.
- 12. A characteristic of matter that can be observed or measured without changing the sample's composition
- 14. law Relates temperature and volume
- 16. A type of change that alters the physical properties of a substance but does not change its composition.
- 20. Vertical columns of elements.
- 21. A form of matter that has its own definite shape and volume, is incompressible and expands only slightly when heated.
- 23. Matter that has the same composition and properties throughout.
- 25. A physical blend of two or more pure substances in any proportion in which each substance retains its individual properties; can be separated by physical means.
- 26. A chemical substance formed as a result of a chemical reaction.
- 27. Relates temperature and pressure.
- 28. The majority of elements in the Periodic Table
- 29. The amount of matter in an object.
- 30. The basic unit of an element.
- 31. A form of matter that flows to conform to the shape of its container, fills the container's entire volume and is easily compressed.
- 34. law Relates volume and amount of substance.
- 36. PV=PV
- 37. States that, regardless of the amount, a compound is always composed of the same elements in the same proportion by mass.
- 38. A physical property that remains the same no matter how much of a substance is present.
- 41. A technique that is used to separate the components of a mixture based on the tendency of each component to travel or be drawn across the surface of another material.
- 42. Poor conductors of heat and electricity
- 43. PV=nRT
- 45. A chemical substance that is present at the start of a chemical reaction.
- 46. A pure substance that cannot be broken down into simpler substances by physical or chemical means.
Down
- 1. The ability or inability of a substance to combine with or change into one or more new substances.
- 3. An extremely unreactive group 18 element.
- 5. States that when different compounds are formed by the combination of the same elements, different masses of one element combine with the same mass of the other element in a ratio of small whole numbers.
- 6. A physical property, such as mass, length, and volume, that is dependent upon the amount of substance present.
- 9. The physical forms in which a substance can exist
- 11. One that does not have a uniform composition and in which the individual substances remain distinct.
- 13. States that mass is neither created nor destroyed during a chemical reaction but is conserved.
- 14. of heat, ductile, malleable, lustrous.
- 15. A change from one state (solid or liquid or gas) to another without a change in chemical composition.
- 17. A process involving one or more substances changing into new substances; also called a chemical reaction.
- 18. Relates temperature, pressure, and volume.
- 19. A percentage determined by the ratio of the mass of each element to the total mass of the compound.
- 22. A technique that can be used to physically separate most homogeneous mixtures based on the differences in the boiling points of the substances involved.
- 24. A change directly from the solid to the gaseous state without becoming liquid.
- 32. A chart that organizes all known elements into a grid of horizontal rows (periods) and vertical columns (groups or families) arranged by increasing atomic number.
- 33. The horizontal rows on the Periodic Table.
- 35. Exists at high temperatures, consists of charged particles.
- 39. A chemical combination of two or more different elements; can be broken down into simpler substances by chemical means and has properties different from those of its component elements.
- 40. An element that has both metallic and nonmetallic properties; examples of metalloids include B, Ge, Si, and Te.
- 44. A form of matter that flows, has constant volume and takes the shape of its container.