Lab-Aids First Semester Final Exam

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Across
  1. 3. A temperature scale with 180 degrees between the freezing point and the boiling point of water; water freezes at 32℉ and boils at 212℉.
  2. 4. heat The quantity of heat energy, measured in J/g℃, it takes per gram to raise the temperature one ℃.
  3. 7. A physical property that depends on how much matter is present; mass, volume, moles, etc.
  4. 9. Describes how close a measurement is to the true value.
  5. 10. Law that states that that energy, matter, or mass can never be created or destroyed; only converted from one form to another.
  6. 12. An amount of space having length, width, and height.
  7. 13. A temperature scale that starts at absolute zero and has the same size degrees as Celsius degrees (= Tcelsius + 273).
  8. 16. A chemical compound or type of chemical bond that forms when 1 metal and 1 nonmetal react with one another.
  9. 17. A measure of a system’s ability to change or create change in other systems, measured in joules.
  10. 19. Anything that has mass and takes up space; solids, liquids and gases.
  11. 21. A temperature scale with 100 degrees between the freezing point and boiling point of water; water freezes at 0℃ and boils at 100℃.
  12. 22. The mass of 1 mole of a compound with a given chemical formula; also known as "formula" mass.
  13. 23. The smallest part of an element that can still retain the properties of that element; a single unit of an element.
  14. 25. One of the seven (1-7) horizontal rows of the periodic table.
  15. 26. A unique type of atom different in the number of protons; found in various groups on the periodic table.
  16. 29. (Z) the number of protons in the nucleus, unique to each differing element on the periodic table.
  17. 31. A solution containing a lot of solute or solutes compared to solvent.
  18. 32. Measures how much matter there is in something; units of grams or kilograms(SI).
  19. 33. Property such as mass, density, or color that you can measure or see through direct observation.
  20. 36. The energy required to melt or freeze 1g of a material at a constant temperature, pressure, and at the melting point; heat of ?
  21. 38. The substance that makes up the biggest % of a mixture, and is usually a liquid; often water.
  22. 39. An interrelated group of matter and energy that we choose to investigate.
  23. 40. The fundamental SI unit of energy (and heat).
  24. 41. The erratic, jerky motion of tiny particles suspended in water, due to the random impacts of individual molecules in thermal motion.
Down
  1. 1. Property that can only be observed when one substance changes into a different substance- such as iron’s tendency to rust.
  2. 2. The lowest possible temperature, at which the energy of molecular motion is essentially zero, or as close to zero as allowed by quantum theory.
  3. 5. A kind of matter that cannot be separated into other substances by physical means such as heating, cooling, filtering, drying, sorting, or dissolving; for example, single elements or compounds.
  4. 6. A solution containing relatively little solute compared to solvent.
  5. 8. The energy required to completely boil off or condense a substance at a constant temperature, pressure, and at the boiling point; heat of ?
  6. 10. Any substance containing more than 1 element in which atoms of different elements are chemically bonded together.
  7. 11. The amount of any substance that contains 6.02 x 10²³ particles of that substance or the average atomic mass in grams is = to one of these for any element.
  8. 14. A measure of the average kinetic energy of atoms or molecules, units of degrees Fahrenheit (℉), degrees Celsius (℃), or Kelvins (K).
  9. 15. A tentative explanation for something, or a possible answer to a scientific question.
  10. 18. The SI unit of mass.
  11. 20. A chemical compound or type of chemical bond that forms when 2 nonmetals react; consist of molecules.
  12. 24. Any substance in a solution that gets dissolved; often a solid; the NaCl that dissolves in water.
  13. 25. Describes how close measured values are to each other.
  14. 27. A scientific explanation that is supported by evidence.
  15. 28. A neutral group of atoms that are covalently bonded together.
  16. 30. The number of moles of solute per liter of solution; M = n/V or M = moles/Liter.
  17. 34. A mixture that is uniform (the same) throughout, any sample has the same composition as any other sample.
  18. 35. A physical property that does not depend on how much matter is present; color, boiling point, concentration, etc.
  19. 37. A mixture of different substances that is NOT UNIFORM, different samples may have different compositions.