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