Chemistry 100 - Review Sheet for Exam #1
Chapter 1: Measurements

  • Units of measurement
  • SI (Internations system of units)
  • Metric system
  • Metric units of measurement:
    • Length - meter (m)
    • Volume - Liter (L)
    • Mass - gram (g)
    • Temperature
      • Celsius (oC)
      • Kelvin (K)
    • Time - seconds (s)
  • Scientific notation
  • Measured number
  • Exact number
  • Signifcant Figures
  • Rounding numbers
  • SI and metric prefixes
    • Giga (G) — 109
    • Mega (M) — 106
    • kilo (k) —103
    • centi (c) — 10-2
    • milli (m) — 10-3
    • micro (μ) — 10-6
    • nano (n) — 10-9
  • Measurements
  • Precision
  • Accuracy
  • Conversion factors
    • 2.54 cm/in
    • 5280 ft/mile
    • 12 in/ft
    • 3 ft/yd
    • 454 g/lb
    • 1 cm3 = 1 mL
  • Percent as conversion factors
  • Density (D = mass/vol)
  • Specific gravity

 

Chapter 2: Energy

  • States of matter
  • Solid
  • Liquid
  • Gas
  • Energy
  • Potential energy
  • Kinetic energy
  • Heat
  • Temperature
  • Celsius (oC)
  • Fahrenheit (oF)
  • oF = 1.8oC + 32
  • Kelvin scale (K=oC+273)
  • Absolute zero
  • calorie (cal)
  • Joule (J)
  • 1 cal = 4.18 J
  • Specific heat (S.H.)
  • q = SH x m xΔT
  • Change of state
  • Melting point (solid to liquid)
  • Freezing point (liquid to solid)
  • Heat of fusion (energy to form solid)
  • Sublimation (solid to gas)
  • Boiling point
  • Vaporization (liquid to gas)
  • Condensation (gas to liquid)
  • Heat of vaporization
  • Heating (cooling) curve
  • Heat of reaction
  • Exothermic (release of energy)
  • Endothermic (gain of energy)
  • Equilibrium

Chapter 3: Atoms & Elements

  • Elements
  • Chemical symbols
  • Periodic table
  • Groups (vertical columns)
    • Alkali metals (Group I)
    • Alkaline earth metals (Group II)
    • Halogens (Group VII)
    • Noble Gases (Group VIII)
  • Periods (horizontal rows)
  • Metals
  • Non-metals (where are these?)
  • Daltons atomic theory
    • Atom
    • Electron (negative)
    • Proton (positive)
    • Neutron (neutral)
  • Atomic mass (amu)
  • Isotopes (atoms with different numbers of neutrons)
    • Atomic number (Z)
    • Mass number (protons + neutrons)
  • Average atomic mass
  • Electron arrangement
  • Electron configurations (e.g., Na 1s2 2s2 2p6 3s1)
  • Periodic law (why groups have similar properties)
  • Energy levels (n=1, 2, 3, etc.)

 Chapter 4: Radioactivity

  • Element
  • Atomic number (Z)
  • Isotope
  • Isotope mass (number)
  • α-particle (helium nucleus)
  • β-particle (electron)
  • Radioactive decay equations
  • Half life
  • Fusion
  • Fission