Across
- 2. Any characteristic that can be determined only by changing a substance’s molecular structure
- 3. A process that does not cause a substance to become a fundamentally different substance
- 5. is a group of atoms cooled to within a hair of absolute zero
- 7. liquid or solid to gas
- 14. matter that does not depend on the amount of the substance present
- 15. process by which electric current is passed through a substance to effect a chemical change
- 17. A process involving the breaking or making of inter atomic bonds and the transformation of a substance into another
- 21. Deals with the processes of living
- 22. is a process used to separate solids from liquids or gases using a filter medium that allows the fluid to pass through but not the solid
- 23. Any characteristic of matter that depends on the amount of matter being measured
- 24. some substances are attracted to a magnet field and can be "pulled" from a mixture
- 25. Free charged particles such as ions and
- 26. has no definite shape or volume
- 27. which all numbers are significant
- 28. Chemical processes in industry
- 31. A substance that cannot be broken down into chemically simpler components
- 32. generally solids such as copper,iron,etc.
- 36. A material composed of two or more substances
- 37. it has a uniform and definite composition
- 39. Heat involved in chemical processes
- 43. generally non lustrous; ex: Sulphur,nitrogen,etc.
- 44. separation by solubility
- 46. which are zeros at the beginning of a decimal number less than 1, are not significant
- 47. holds a definite shape and volume
- 48. everything that takes up space and has mass
- 49. Polymers and plastics
Down
- 1. Chemical interactions
- 4. sublimating material changes from a solid to a gas
- 6. is a common abbreviation for significant figures
- 8. is an effective method to separate mixtures comprised of two or more pure liquids
- 9. have characteristics common to metals as well as non-metals
- 10. Any characteristic that can be determined without changing the substance’s chemical identity
- 11. substance composed of two or more elements in fixed proportions
- 12. Focuses on carbon-containing compounds
- 13. is a mixture in which the composition is not uniform throughout the mixture
- 16. is defined as a process by which a chemical is converted from a liquid solution into a solid crystalline state
- 18. Matter and the environment
- 19. fundamental unit of matter
- 20. Behavior and changes of matter and the related energy changes
- 29. which are zeros at the end of a number, are significant only if the number has a decimal point
- 30. separation of liquids by density and solubility
- 33. Solids and liquids can be changed from one state to another by heating or cooling.
- 34. is the one which made up of molecules containing the same kind of atoms
- 35. Parts and composition of matter
- 38. is essentially a physical method of separation in which the components of a mixture are separated by their distribution between two phases
- 40. gas to solid
- 41. A process that causes a substance to change into a new substance with a new chemical formula.
- 42. is a mixture in which the composition is uniform throughout the mixture
- 45. has an indefinite shape and able to flow