CHEMISTRY

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Across
  1. 3. the ability of a chemical to burn or ignite, causing fire or combustion.
  2. 5. a substance is the relationship between the mass of the substance and how much space it takes up (volume).
  3. 9. consist of only one kind of atom and cannot be broken down by chemical and physical means.
  4. 13. a chemical element that mostly lacks the characteristics of a metal.
  5. 15. can be broken down by physical means.
  6. 17. it measures the loss of electrons in an atom in a compound.
  7. 18. branch of chemistry that applies physical to study chemistry, and includes thermodynamics and quantum mechanics to chemistry.
  8. 19. the point in which the solid turns into liquid state
  9. 20. the most stable element due to having the maximum number of valence electrons their outer shell can hold.
  10. 21. follows the shape of its container.
  11. 23. branch of chemistry that studies inorganic compound.
  12. 24. components in which proportion varies throughout the sample.
  13. 27. separation of mixture by passing it in a solution or suspension as a vapor through a medium in which components moves at different rates.
  14. 28. one millionth of a milimeter.
  15. 29. often used to make glowing signs by using electricity to ionize them to the plasma state.
  16. 30. a branch of physics that deals with heat and temperature, and their relation to energy, work, radiation, and properties of matter.
  17. 31. can be broken down by physical means.
  18. 33. - heat released during combustion.
  19. 35. any of various metallic elements that have valence electrons in two shells instead of only one.
  20. 36. It is a comparative measure of how hot or cold a material is.
  21. 38. any non-zero digits or trapped zeros.
  22. 40. has no definite shape or volume.
  23. 42. particles are tightly packed together.
  24. 43. measured by kg
  25. 44. a technique used to separate out homogenous mixtures where there is one or more dissolved solids.
  26. 45. a fundamental theory in physics.
  27. 47. the study of chemical processes inside living organism.
  28. 48. branch of chemistry that studies matter and the development of tools to measure properties of matter.
  29. 49. a separation method used to separate out pure substances in mixtures comprised of particles some of which are large enough in size to be captured with a porous material.
Down
  1. 1. used mainly to segregate two immiscible liquids.
  2. 2. the defined as emission of radiations from an unstable nucleus.
  3. 4. any substance that has mass and takes up space by having volume.
  4. 6. measured by m
  5. 7. the temperature at which a liquid changes to a solid.
  6. 8. separation using hands.
  7. 10. measured by mol
  8. 11. a method for separating the solvent from a solution.
  9. 12. a metric unit of linear measure that equals 1/1,000,000 meter
  10. 14. mixture that has the same proportion of its components throughout the sample.
  11. 16. a measure of the amount of space that a substance or an object takes up.
  12. 19. consist of two or more atoms of the same element or different elements,that are chemically bound together
  13. 22. it measures how dangerous a chemical.
  14. 25. is the metric system used in science, industry, and medicine.
  15. 26. measured by A
  16. 32. the measure of acidity.
  17. 34. branch of chemistry that deals with carbon and its compound.
  18. 37. ability of matter to react chemically with other substance.
  19. 38. measured by s
  20. 39. measured by K
  21. 41. characteristic of a substance that is observe during a reaction in which the chemical composition or identity of a substance is changed.
  22. 46. whose properties are intermediate between those of metals and solid nonmetals or semiconductors.