8.1 Item Analysis
Students took the quiz shown below and then an item analysis was done of the first 4 questions:
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Question 1:
Identify the type of reaction:
Zn + HCl --> ZnCl2 + H2
29 people got it right, 2 people got it wrong
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Question 2:
Identify the type of reaction:
FeCl3 + Na2CO3 --> Fe2(CO3)3+ NaCl
31 people got it right, 0 people got it wrong
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Question 3:
Identify the type of reaction:
Na + CL2 --> NaCl
26 people got it right, 5 people got it wrong
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Question 4:
Identify the type of reaction:
C2H6 + O2 --> CO2+ H2O
27 people got it right, 4 people got it wrong
Identify the type of reaction:
Zn + HCl --> ZnCl2 + H2
29 people got it right, 2 people got it wrong
___________________________________________________________________________________
Question 2:
Identify the type of reaction:
FeCl3 + Na2CO3 --> Fe2(CO3)3+ NaCl
31 people got it right, 0 people got it wrong
___________________________________________________________________________________
Question 3:
Identify the type of reaction:
Na + CL2 --> NaCl
26 people got it right, 5 people got it wrong
___________________________________________________________________________________
Question 4:
Identify the type of reaction:
C2H6 + O2 --> CO2+ H2O
27 people got it right, 4 people got it wrong