Across
- 5. a substance combines with another to form a new substance
- 7. smallest unit of ordinary matter that forms a chemical element
- 12. transition from a solid to a gas state without passing through the liquid phase
- 13. a given chemical compound always cotains its component elements in fixed ratio
- 16. any of a materials properties that becomes evident during or after chemical reaction
- 19. the product of the pressure and the volume of one gram molecule of an ideal gas is equal to the product of the absolute temperature
- 20. a substance that takes part in and undergoes changes during a reaction
- 21. something that is the result of anaction or process
- 22. quantity of matter in a physical body
- 23. group of elements with similar chemical properties
- 26. any property that is measureable, value describes a state
- 29. an element whose properties are intermediate between those of metals and solid nonmetals
- 30. a state o fmatter consisting of particles that have neither a defined volume nor defined shape
- 31. pure substance consisting only of atoms that have the same number of protons in their nuclei
- 32. property a property that is measureable, and describes a state of matter
- 33. one state of matter not liquid
- 35. an experimental gas law that describes how the pressure of a gas tends to decrease as the volume of the container increases
- 36. describes how gases tend to exapnd when heated
- 37. lab technique for the separation of a mixture into its components
- 39. any substance that has mass and takes up space
- 40. compnenets are distributed the same or in uniform
- 42. a substance with high electrival conductivity, readily forms positive ions
- 43. a physical quantity whose value is proportional to the size of the system it describes
- 44. solid forms where atoms or molecules are highly organized into a crystal structure
- 45. a substance in the gas phase at a temerature lower than its critical temperature
- 46. consists of different substances
- 47. equal volumes of gases at the same temperature and pressure equa; numbers of molecules
Down
- 1. a purifying liquid by a process of heating and cooling
- 2. physical separation process, separates solid matter
- 3. if two elements form more than one compound the the ratios of the masses of the second element which combine with a fixed mass of the first element
- 4. exhibit great stability and extremely low reaction rates helium, neon, argon, krypton, xenon, radon
- 6. table chemical elements arranged in order of atomic number usually in rows so that elements with similar atomic structure appear in vertical columns
- 8. volume of gases undergoing rection at constant pressure and temperature one in a simple ratio to each other and the product
- 9. chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds
- 10. that flows freely has constant volume
- 11. lacks characteristics of metal, elements on the right of the periodic table
- 14. all collisions between atoms and molecules are perfectly elastic
- 15. a single substance made of only one type of particle
- 17. physical quantity whose value does not depend on the amount of substance for which it is measured
- 18. a chemical reaction mass is neither created nor destroyed
- 24. changes affecting form of a chemical substance but not its chemical composition
- 25. the change of a substance from one physical form to another
- 27. calculated as the mass of a component divided by the total mass of a mixture
- 28. state of matter consists of gas ions
- 34. horizontal rows of elements on the periodic table
- 38. a substance made by mixing other substances together
- 41. one of the distinct forms in which matter can exist