Introduction:
In this lab we were to take certain chemicals and mix them together to observe the five types of chemical reactions. The chemicals we used were the follows.
CuSo4
Ba(no3)2
Mg ribbon
HCL
H2O2
Materials:
3 small test tubes
CuSo4
Ba(NO3)2
Hydrochloric acid
Bunsen burner
Propane gas
H2O2
MnO2
goggles
aprons
test tube holders
Types of Reactions:
Synthesis: A reaction that has two or more materials meld together into one more completed compound.
Decomposition: A reaction in which one substance breaks down into to or more substances.
Single Displacement: One element takes the place of another element.
Double Displacement: Two elements take the place of two other elements.
Combustion: When the products of the reaction are Co2 or H2O
Observations:
CuSo4: For the first few minutes nothing notable happened. There was absolutely no change. CuSo4+Zn-ZnSo4+Cu Single Displacement.
Ba(NO3)2: Lots of foam and bubbling but other then that there was very little change over the few minutes we observed it. Ba(NO3)2+CuSO4-BaSO4+Cu(NO3)2 Double Displacement
Magnesium ribbon HCL: Violent hissing and bubbling lots of heat is being created. Hydrogen gas is being released. The magnesium ribbon was eventually broke down. H2O2-HO Decomposition.
Conclusion: Some chemical reactions are much more active then others, and act differently then other reactions. Like a Magnesium ribbon in HCL creates a smoke ring that travels up and down the test tube, while CuSo4 just turns blue.
Pictures and data table will not load into this blog. Sorry!
Friday, March 19, 2010
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