REACTION LAB

Introduction:

In this lab we performed various chemical reactions in a lab. We recorded our observations then identified the type of reaction and wrote a balanced chemical equation.

Purpose:

The purpose of this lab is to become more familiar with the five types of chemical reactions below.

Types of Reactions:

Combustion: A violent exothermic reaction usually with oxygen or oxides.

16KCl₃ + 3P₄S₃ --> 16 KCl + 9SO₂

Decomposition: A reaction in which a single compound is broken down to produce two or more simpler substances.





Single Displacement: Chemical reaction in which one element replaces another element in a compound that is in solution.







Double Displacement: Chemical reaction in which ions from two compounds interact in solution to form a product.




Synthesis: Chemical reaction in which atoms or simple molecules combine to form a compound that is more complex.










Procedure:

1. Obtain 3 small test tubes.
2. In the first test tube, place a piece of zinc and about 1/2 mL of CuSO4 solution. Record observations.
3. In the second test tube add about 1/2 mL Ba(NO3)2 solution to about 1/2 mL of CuSO4 solution. Record observations.
4. In the third test tube place a piece of magnesium ribbon. Add about 1/2 mL of HCl solution. Record observations.
5. Light a bunsen burner (burning propane gas, C3H8). Record observations of the flame.
6. Rinse out the first test tube. Add about 2 mL H2O2 solution. Lightly heat it. Record observations
7. Add a pinch of MnO2 (catalyst) to the H2O2 solution. Lightly heat it. Record observations

Data/Results:

1. Zn + CuSO₄ Cu + ZnSO₄

Single Displacement

2. Ba(NO₃)₂ + CuSO₄ à BaSO₄ + Cu(NO₃)₂

Double Displacement

3. Mg + 2HCl à H₂ + MgCl₂

Single Displacement

4. C₃H₈ + 5O₂ à 3CO₂ + 4H₂O

Combustion

5. 2H₂O₂ à 2H₂O + O₂

Decomposition


Conclusion:

In this lab we performed the several different types of reactions. After performing these reactions we wrote down the chemical equations for each reaction and determined whether it was synthesis, double displacement, single displacement, combustion, and decomposition. By creating these we reactions we can now better understand what to look for for each reaction.