the five types of reactions:
•Combustion reaction - 2 Oxygen molecules and extra energy are released. It is violent exothermic reaction with oxygen to form oxide(s).
•Synthesis reactions - (also know as direct combination reactions) atoms or simple molecules combine to form a more complex compound.
•Decomposition reactions - one compound breaks down to produce two or more simpler substances.
•Single displacement reactions - one element replaces another in a compound that is in a solution.
•Double displacement reactions - ions from two compounds interact in a solution to form a product.
this is an example of double displacement in the way of the two couples interchanging partners as if they were positive and negative, attracting the partner of the opposite couple. This is the metals changing polyatomic anions.
Procedure:
Obtain 3 test tubes
In one, place a piece of zinc and about 1/2 mL of CuSO4.
In another, add about 1/2 mL of Ba(NO3)2 solution to about 1/2 mL of CuSO4 solution.
In the third, place a piece of magnesium ribbon. add about 1/2 mL of HCl solution.
record all observations
Light a bunsen burner, recording observations of flame
rinse out first test tube and add about 2 mL of H2O2 solution. LIGHTLY heat it and record observations.
Add a pinch of MnO2 to the H2O2 solution. LIGHTLY heat it and record observations.
Results:
| reactant | observations | products | Reaction type |
| zinc and CuSO4 | In the first test tube with zinc and CuSO4, copper precipitate formed on the zinc. The reaction was single displacement. | Cu and ZnSO4 | single displacement |
| Ba(NO3)2 and CuSO4 | In the second test tube containing Ba(NO3)2 and CuSO4, there were bubbles meaning gases were released and white powder formed at the bottom of the tube. The was an example of a double displacement reactions. | BaSO4 and Cu(NO3)2 | double displacement |
| Mg and HCl | In the third test tube with the magnesium ribbon and HCl, lots of bubbles formed and the solution gave off heat. This was a single displacement reaction. | H2 and MgCl2 | single displacement |
| C3H8 and O2 | Bunson burner - the flame is dark blue at the opening where the C3H8 was release. Surrounding that was a lighter blue and at the very tip was orange. | CO2 and H2O | combustion |
| H2O2 | Higher boiling point? The solution bubbled black. Flame place over the gas was extinguished. | H2O and O2 | |
Chemical Reactions:
Zn + CuSo4 -> Cu + ZnSo4
Ba(No3)2 + CuSo4 -> BaSo4 + Cu(No3)2
Mg + HCl -> H2 + MgCl2
C3H8 + O2 -> Co2 + H2O
H2O8 -> H2O + O2
Conclusion
As a result of mixing the substances we found many different reaction types depending on what items we mixed together. In this lab we recorded all observations while working and continued to identify the type of reaction followed by writing the correct balanced equation.
