Some questions from earlier chapters....

• elements.... the symbol for Iron is ___
• atomic number matches the number of
• _______
• how many atoms in a molecule of H₂C₂O₄
• is the reaction balanced? .......
• how much O₂ reacts with _1g___ Copper
  • 2Cu + O₂ ---> 2CuO
  • moles...... grams....... molecules
• periodic table arranges atoms by .....
  • an example of a halogen is ______
  • an example of a nobel gas is _____
  • is phosphorus a metal?
  • name 3 elements that are diatomic molecules
• what's an allotrope ? (an example?)
• what's an isotope?
• what's an isomer?
• In the reaction HNO₃ + H₂O -->H₃O⁺ + NO₃-
  • HNO₃ is acting as ________
• air-- approximate composition
  • role of O₂, N₂
• what's either undesirable or good/bad in air
  • role of hemoglobin
  • effect of CO
  • source of CO
  • major sources of SO₂ and SO₃
  • important green house gases
    • what does the term mean?
• regions of atmosphere; what happens where
  • Ozone, troposphere
    • source, signficance
  • Ozone is stratosphere
    • role of CFC (what is a CFC?)
    • ozone hole? description & significance
• Metric qualitites
  • meter, centimeter, gram, kilogram
  • temperature in Celsius
  • density
• Moles -- defined, value to chemists
  • Avogadro's number, significance
  • translate 3.2 x 10³ or 0.00054
• Solvent, Solute, Solution
  • molarity
  • solubility
• Molecule vs. ionic compound