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Flashcards

Chemistry

Jerome Andena5049 English 64 cards

Cards in this deck (64)

  1. 1It is a study of matter, its properties, composition, structure, transformation from one to form another, and the energy that accompanies its transformation.Chemistry
  2. 23 Perspective/Levels of Understanding in the Study of Chemistry1. Macroscopic
    2. Microscopic
    3. Symbolic
  3. 3The things that we can see or feel about substances and their reaction.Macroscopic
  4. 4Interpret the events of observed in macroscopic perspective focusing on the smallest component of the system.Microscopic
  5. 5Use of symbols to make the macroscopic and microscopic perspective more efficient.Symbolic
  6. 6Anything that has mass and occupy space and can be observed.Matter
  7. 7Properties of Matter1. Physical Properties
    2. Chemical Properties
  8. 8Variables that we can measure without changing the identity of the substance.Physical Properties
  9. 9Associated with the types of chemical changes that a substance undergoes.Chemical Properties
  10. 10Scientific Methods1. Observation
    2. Hypothesis
    3. Experiment
    4. Theory
    5. Conclusion
  11. 11Parts of Measurement1. Numerical Value
    2. Unit
  12. 12Indicates how close the observed value is to the true value.Accuracy
  13. 13The spread in values obtained from the measurement.Precision
  14. 14Types of Error1. Random Error
    2. Systematic Error
  15. 15Associated with limitations of the equipment with which the measurement is made.Random Error
  16. 16Associated with existence of some unknown bias in the measurement.Systematic Error
  17. 17Systems of Measurement1. S.I Unit
    2. English
  18. 18Prefixes used in S.I Unit10^24=Yotta=Y
    10^21=Zetta=Z
    10^18=Exa=E
    10^15=Peta=P
    10^12=Tera=T
    10^9=Giga=G
    10^6=Mega=M
    10^3=Kilo=K
    10^2=Hecto=h
    10=Deka=da
    10^-1=Deci=d
    10^-2=Centi=c
    10^-3=Milli=m
    10^-6=Micro=M
    10^-9=Nano=n
    10^-12=Pico=P
    10^-15=Femto=f
    10^-18=Atto=a
    10^-21=Zepto=Z
    10^-21=Yocto=y
  19. 19Fahrenheit to CelsiusF - 32 x 5/9
  20. 20Celsius to FahrenheitC x 9/5 + 32
  21. 21Kelvin ConversionC + 273=K
  22. 22Classification of MatterPure Substance
    Mixtures
  23. 23Made up of only one kind of atom or molecule.Pure Substance
  24. 24Pure SubstanceElements
    Compounds
  25. 25Simplest form of matter composed of only one kind of atom.Elements
  26. 26Composed of molecules of two or more elements in a fixed ratio.Compounds
  27. 27A given compound always contains the same fixed ration of elements.Law of Definite Composition
  28. 28Elements can combine in different ratios to form different compounds.Law of Multiple Proportions
  29. 29Variable combination of two or more pure substances.Mixtures
  30. 30MixturesHomogenous
    Heterogenous
  31. 31Mixture in a single phase.Homogenous
  32. 32Mixture in two or more phases.Heterogenous
  33. 33Atomic Theory and ModelsDemocritus
    John Dalton
    J.J Thompson
    E. Goldstein
    J. Chadwick
    E. Rutherford
    Bohr's Model
  34. 34The Greek Philosopher contributed to the Atomic Theory.Democritus
  35. 35-He made a piece of equipment called the "cathode ray tube." - He discovered Electron.J.J Thompson
  36. 36He discovered Proton.E. Goldstein
  37. 37He discovered Neutron.J. Chadwick
  38. 38He used radioactivity to prove Thompson's theory.E. Rutherford
  39. 39It stated that electrons exist only in orbits with specific amounts of energy called "levels."Bohr's Model
  40. 40Structure of AtomsElectron
    Nucleus
  41. 41Negatively charged particle.Electron
  42. 42Massive central part of an atom.Nucleus
  43. 43Positively charged particle.Proton
  44. 44No charge particle.Neutron
  45. 45It contains the symbol of the element, the mass number & the atomic number.Atomic Symbol
  46. 46Mass of an atom relative to carbon-12 atom.Relative Atomic Mass
  47. 47Average mass of the Isotope.Average Atomic Mass
  48. 48Atoms with different number of protons and electrons.Ions
  49. 49The systematical arrangement of elements.Periodic Table of Elements
  50. 50He made the periodic table in vertical arrangement based on increasing atomic weight.Dmitri Mendeleer
  51. 51He made the modern periodic table.Henry Moseley
  52. 52Outermost electron of an atom.Valence Electron
  53. 53Metals-Mostly solid(except Hg)
    -Good electrical and thermal conductivity
    -High density, high melting and boiling point
    -Combine with non-metals to produce salt
    -Do not combine with each other
  54. 54Non-metals-Several exist as gases
    -Poor electrical and thermal conductivity
    -Low density, low melting and boiling points.
    -Combine with metals to produce salts
    -Some combine with each other
  55. 55The amount of energy required to remove an electron from an atom.Ionization Energy
  56. 56The amount of energy released when an atom accept an electron.Electron Affinity
  57. 57The tendency of an atom to attract electron towards itself.Electronegativity
  58. 58The joining or combining of two or more atoms to form a molecule.Chemical Bond
  59. 59Chemical Bond1. Covalent
    2. Ionic
    3. Metallic
  60. 60Outer shell must be fille up with eight electrons except first shell.Octet Rule
  61. 61Symbolic description of a molecule or compound showing its constituent elements and the relative number of each.Chemical Formula
  62. 62Chemical FormulasMolecular Formula
    Empirical Formula
  63. 63Chemical formula showing the number of atoms of each element in one molecule of a compound.Molecular Formula
  64. 64Chemical formula that shows the composition of a compound in terms of the simplest whole-number ratio of atoms.Empirical Formula

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Flashcards on Chemistry, created by Jerome Andena5049 on 14/07/2014.
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