Interpreting Record Reports


"9/19/99, 3:30:58 PM, 129.93.84.36, Combustion"

User received tutoring on Combustion sent to IP address 129.93.84.36 at 3:30:58 PM on 9/19/99.

"9/19/99, 3:30:58 PM, 129.93.84.36, Review Existing Record, or Initiate New"

User reviewed a record (or initiated a new record) that was sent to IP address 129.93.84.36 at 3:30:58 PM on 9/19/99.

9/19/99,4:10:02 PM , 129.93.84.36, 3, 1, 17 71 103 108 141 160 177 192

This indicated that a quiz has been sent. The information in this string is interpreted as follows:

9/19/99 Date
4:10:02 PM Time
129.93.84.36 Sender's IP Address
3 Option:
1 = Typical AP Test
2 = Aqueous Redox
3 = Acid-Base
4 = Precipitate formation
5 = Complex Ion
6 = Acid-Base Anhydride
7 = Other Types
1 Tutoring option
1 = Tutoring
2 = No Tutoring
17 71 103 108 141 160 177 192 Numbers of Problems Sent
allows detailed review

189,CaCO3,0,0,CaO,CO2,0,3

158,Al2O3,OH-,0,Al(OH)4-,0,0,3

154,Ag+,CrO42-,0,Ag2CrO4,0,0,3

89,Na2SO3,H2O,0,Na+,HSO3-,OH-,3

61,H+,CaO,0,H2O,C22+,0,2

57,NaH,H2O,0,Na+,H2,OH-,3

29,H2,CuO,0,H2O,Cu,0,3

5,Mg,H+,0,Mg2+,H2,0,0

9/29/99, 10:07:53 AM, 129.93.84.36, 1, 1, 20

A user at 129.93.84.36 submitted a tests for grading at 10:07:53 AM on 9/29/99. The test was sent out as a typical AP chemistry test, and tutoring was available. The user received problems numbered 5 29 57 61 89 154 158 189 from the question database. The user received 3 points on all questions except 61 and 5. On question 61, there seems to have been a typographical error. On question 5, the user forgot that magnesium metal can reduce nitrate ion to ammonium ion. S/he earned a total of 20 points. The answers submitted for the questions answered were as follows:

Question Reactant-1 Reactant-2 Reactant-3 Product-1 Product-2 Product-3 Points
189 CaCO3 - - CaO CO2 - 3
158 Al2O3 OH^- - Al(OH)4^- - - 3
154 Ag^+ CrO4^2- - Ag2CrO4 - - 3
89 Na2SO3 H2O - Na^+ HSO3^- OH^- 3
61 H^+ CaO - H2O C2^2+ - 2
57 NaH H2O - Na^+ H2 OH^- 3
29 H2 CuO - H2O Cu - 3
5 Mg H^+ - Mg^2+ H2 - 0

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