chemistry help please

Mar 13th, 2015
Steve1995
Category:
Chemistry
Price: $20 USD

Question description

Directions: Respond to the questions below.

  1. Alcohol in our digestive system reacts with oxygen gas to form carbon dioxide and water.  How many grams of carbon dioxide are released if a 10.00 g alcohol sample reacts with 20.85 g of oxygen gas and produces 11.77 g of water?
  2. Using the periodic table, fill in the missing information in the following table: 

    Protons

    Neutrons

    Electrons

    Isotope Symbol

    5927CO

    76

    124

    14C

    21

    24

    21

  3. Give the number of valence electrons for each of the following: 
    1. Ba
    2. Al
    3. P
    4. Se
    5. Br
    6. K
  4. Give short definitions for the following terms: 
    1. Atomic number
    2. Mass number
    3. Atomic weight
    4. Isotope
    5. Natural abundance
    6. Atomic mass unit
  5. Complete the following table: 

    Isotope

    Atomic No.

    Mass No.

    No. of Protons

    No. of Neutrons

    No. of Electrons

    Bromine-81

    81

    Boron-11

    5

      Cl

    17

    52Cr

    52

    Ni-60

    Sr-90

    Lead-206

  6. Explain how ozone is formed in the troposphere.
  7. Write the equation for the reaction that occurs when lightning causes nitrogen to react with oxygen.
  8. Describe two sources of carbon monoxide
  9. Write the formulas for the ionic compounds that will form between the following ions: 
    1. Magnesium ion and chloride ion
    2. Lithium ion and fluoride ion
    3. Aluminum ion and oxide ion
    4. Zinc ion and iodide ion
  10. Which of the following compounds would you expect to exhibit hydrogen bonding? Explain your answer. 
    1. CH3OH
    2. NH3
    3. SO2
    4. CO2
    5. CH4
    6. HF
    7. CH3OCH3

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