Thursday, March 18, 2010

Types of Reactions.

1. Introduction/Background: In this lab, we will perform various chemical reactions. We will record our observations and then identify the types of reactions and balance each chemical equation. The lab purpose is to become more familiar with the 5 reaction types we use.



The 5 reaction types
:


2. Procedure:
A
.
First we got on all our safety gear(goggles and aprons)
B. Next we obtained 3 small test tubes from the lab kit & cleaned them out.
C. In the first test tube we placed one piece of zinc and about 1/2 ml of CuSo4 solution.
D. We observed the reaction and waited for around 5 mins.
E. In the second test tube we added 1/2 ml Ba(No3)2 solution to about 1/2 ml of CuSo4 solution.
F
.
In the third test tube we placed a pinch of magnesium, to 1/2 ml oh HCl solution.
G. We lit a Bunsen burner & observed the flame.
H.
Over the flame we put H2O2 and lightly heated it.
I. Then we added a pinch of MnO2(magnesium oxide).
J.
Then we observed the reactions that took place, and cleaned up the lab station.

3. Data Analysis:
Balanced equations (( 8===D O: ))
1. Zn + CuSO4 --> ZnSO4 + Cu
Single-Displacement Reaction

2. Ba(NO3)2 + CuSO4 --> BaSO4 + Cu(NO3)2
Double-Displacement Reaction

3. Mg + 2HCl --> MgCl2 + H2
Single-Displacement Reaction

4. C3H8 + 5O2 --> 3CO2 + 4H2O
Combustion Reaction

5. 2H2O2 --> 2H2O + O2
Decomposition Reaction



3 comments:

  1. nice procedure and good notes. needs some pictures

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  2. Very COLORFUL :) and nice observations. Needs more information though otherwise very nice!

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  3. colorful and fun, but there needs to be a detailed description of each reaction type, and a discussion of each reaction in your discussion conclusion

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