1. Q: What determines the degree of completeness of a reaction?
D: equilibrium constant
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2. Q: What is the substance called that causes an alteration of the speed of a chemical reaction?
C: catalyst
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3. Q: What substance does not have catalytic capability, but does increase the effectiveness of a catalyst?
B: promoter
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4. Q: Who first proposed the atomic theory?
A: John Daltan
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5. Q: What is the temperature at which the vapor pressure of a liquid slightly exceeds the pressure of the atmosphere above the liquid?
B: boiling point
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6. Q: When the pressure on a liquid is increased, the boiling point:
A: goes up
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7. Q: What is the property of a fluid that prevents it from flowing when subjected to an applied force?
C: viscosity
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8. Q: High-viscosity fluids tend to:
A: resist flow
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9. Q: What theory states that equal volumes of different gases contain the same number of molecules when compared under the same conditions.
D: Avogadro's Law
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10. Q: What are atoms of the same element that differ in weight?
A: isotopes
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11. Q: Who first came up with the periodic table?
B: Dmitry Mendeleyev
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12. Q: What is the number of the element on the Periodic Table called?
D: atomic number
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13. Q: Who invented the X-ray?
A: Wilhelm Conrad Roentgen
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14. Q: What is the center of the atom?
B: nucleus
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15. Q: Who's theory proposed that electrons are arranged in shells, or quantum levels, at a distance from the nucleus?
C: Bohr
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16. Q: If helium has an atomic number of 2, how many electrons does it have?
B: 2
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17. Q: According to Bohr's Theory, what is the maximum number of electron orbital layers?
D: 7
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18. Q: Which gas is not an inert gas?
A: oxygen
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19. Q: Inert gases have:
B: completely filled outer shells
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20. Q: Do inert gases enter into chemical combinations in nature?
A: no
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21. Q: The inner-most electron shell can contain how many electrons?
C: 2
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22. Q: Which is a proton donor?
A: acid
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23. Q: Which is a proton acceptor?
B: base
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24. Q: Alkali metals have:
A: low melting points
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25. Q: How many Alkali metals are there?
D: 6
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26. Q: Which is not an Alkali metal?
C: gold
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27. Q: What was Melvin Calvin was known for his study of?
B: photosythesis
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28. Q: What element is crucial to the existence of living organisms?
C: carbon
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29. Q: What is the process of rapid oxidation of a substance with simultaneous evolution of heat?
D: combustion
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30. Q: What is the gradual change of a liquid into a gas without boiling?
A: evaporation
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31. Q: What is the breaking down of a substance or compound into its simpler components?
B: decomposition
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32. Q: What are chemical changes in organic substances caused by the action of enzymes called?
D: fermentation
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33. Q: What compounds are formed by the reaction of acids and alcohols?
C: esters
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34. Q: Which of the following elements must be present for fire to exist?
A: oxygen or chlorine
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35. Q: What is the number of electrons that an atom can give to or accept from another atom in a chemical reaction?
B: valence
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36. Q: Who was key to developing the valence theory?
C: Sir Edward Franklin
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37. Q: What is the temperature at which a liquid congeals into the solid state at a given pressure?
D: freezing point
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38. Q: What is the change of a substance from the solid to the liquid state called?
B: fusion
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39. Q: Who invented vulcanization for the rubber industry?
A: Charles Goodyear
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40. Q: What process combines rubber and sulfer at a high temperature?
B: vulcanization
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41. Q: Who won the 1944 Nobel Prize in chemistry for his work in nuclear fission?
C: Otto Hahn
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42. Q: How many Halogens are there?
D: 5
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43. Q: What elements are Hydrocarbons composed of?
C: Hydrogen and Carbon
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44. Q: What is something called when it changes color in response to the nature of its chemical environment?
B: indicator
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45. Q: What color does Litmus change to in acid solutions?
A: red
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46. Q: What color does Litmus change to in basic solutions?
B: blue
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47. Q: What does an atom that loses an electron form?
A: cation
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48. Q: What does an atom that gains an electron form?
B: anion
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49. Q: What is one of two or more species of atom having an identical atomic number but differing in mass number called?
D: isotope
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50. Q: What is one of two or more molecules, having the same chemical compositions, but a differing arrangement of atoms?
A: isomer
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51. Q: Who invented the Carbon-14 dating method?
B: Williard Libby
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52. Q: Amalgams are types of what?
A: alloys
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53. Q: Alloys are:
C: combinations of metals
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54. Q: What is the ability of a solid substance to resist abrasion and surface deformation called?
A: hardness
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55. Q: What is the resistance to breakage called?
D: tensile strength
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56. Q: What is the ability to return to the original shape after being deformed called?
B: elasticity
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57. Q: What is the ability to be shaped called?
C: malleability
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58. Q: What is the sum of all the atomic weights of all the atoms in a molecule?
C: Molecular Weight
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59. Q: What is the smallest particle of a substance having the specific chemical properties of that substance?
B: molecule
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60. Q: What term indicates the hydrogen ion concentration of a solution?
D: pH
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61. Q: What is the chemical formula for salt?
A: NaCl
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62. Q: What is the chemical formula for water?
B: H2O
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63. Q: What is a solvent for salt?
D: water
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64. Q: Polymers are made up of smaller repeating units called?
C: monomers
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