The purpose of this lab was to observe chemical changes, to write balanced equations, and to identify different types of reactions.

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Types of Reactions Lab

Purpose: To observe chemical change, to write balance equations for the chemical reactions observed, and to identify different types of chemical reactions.

Procedure:

Prepare a suitable Data Collection Table to record all your observations.

  • Reaction 1: Reaction of aluminum metal with copper (II) nitrate solution

Materials: small beaker, copper (II) nitrate solution and a piece of aluminum strip

1. Place an adequate amount of copper (II) nitrate solution into the beaker

2. Add a piece of Aluminum.

3. Record initial observations in the Data Collection Table.

3. Allow the solution to react with the aluminum for a few minutes.

         4. Feel the test-tube.

5. Record final observations at the end of the experiment, after filtering the products when all the other procedures have been completed.

6. Clean Up: A metal pan is to be used to collect all solid materials.

  • Reaction 2: Reaction between cobalt (II) chloride solution and sodium hydroxide solution.

Materials: small beaker, cobalt (II) chloride solution and sodium hydroxide solution

1. Place 10 ml of cobalt (II) chloride solution into a small beaker.

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2. Record observation.

3. Add the same amount of sodium hydroxide to the cobalt (II) chloride solution.

4. Record all observations in the Data Collection Table.

5. Clean Up: Pour the contents of the beaker into the collecting reservoir.

  • Reaction 3: Combustion of magnesium ribbon.

Materials: tongs, Bunsen burner, matches and a small strip of magnesium ribbon

1. Take a small strip of magnesium.

2. Record observations.

3. Using tongs, burn the magnesium metal in a Bunsen flame. (do not look directly at the burning magnesium.)

4. Examine the product.

5. Clean Up: Once cooled, place the product ...

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