ChemLab #10 - Predicting Reaction Products
Date Submitted: Self-evaluation Score:
Lab Group Members:  
6M HCl and NaOH are corrosive. If you spill any on your skin,
immediately begin flushing with water and notify your facilitator.
    1. Use your knowledge of chemical reactions to complete the equations. Have your teacher approve the completed equations.
    2. Perform each reaction according to the directions and record all evidence of a chemical reaction.
    3. If you see no immediate evidence of reaction, go on to the next procedure and re-examine later.
Reactants and Predicted Products Micro Lab Equipment
1.     Mg   +   HCl  
Place a piece of magnesium ribbon in a chemplate well. Add 10 drops of 6M HCl and observe.

2.     Zn   +   HCl  
Place a piece of mossy zinc metal in a chemplate well. Add 10 drops of 6M HCl and observe.

3.     Cu   +   HCl  
Place a piece of copper metal in a chemplate well. Add 10 drops of 6M HCl and observe.

4.     Zn   +   CuSO4  
Place a piece of mossy zinc metal in a chemplate well. Add 10 drops of copper (II) sulfate and observe.

5.     CuSO4   +   ZnCl2  
Put about 10 drops of copper (II) sulfate in a chemplate well. Add an equal amount of zinc chloride and observe.

6.     Ca   +   H2O  
Put a piece of calcium in a chemplate well. Add 10 drops of water and observe.

7.     HCl   +   NaOH  
Put 10 drops of 6M HCl in a chemplate well. Slowly add the same amount of 6M sodium hydroxide, 1 drop at a time, and observe.

8.     Mg   +   O2  
With tongs, bring a piece of magnesium ribbon over a burner flame and hold until the reaction is complete. Place the reaction product in a chemplate well and observe.

 

Microlabs are exactly like any other, except for the amounts of chemicals involved. Reactant solutions are kept in "polypots" instead of beakers or flasks. Reactions take place in "chemplate" wells instead of test tubes.
 
 
Evidence of Reaction
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The only conclusion needed for this lab is to answer the question: Did any of the observed reactions disagree with your predictions? If so, describe on the back of this lab report.