Name: Period: Date of Lab:

Evidence for Chemical Change in Removing Copper from Solution

Objective:

Safety Considerations: Data: Complete the data table based on the data taken during the lab. Construct an evaluation of each procedure that includes the following information, in the table below. Procedure 1 or "Heating a Wooden Splint" Reactants Type of matter Physical description

Chemical Changes observed: Physical Changes observed: Products Type of matter Physical description

Type of matter à mixture (heterogeneous or homogenous) or pure substance (element or compound).

If you prefer a more linear (straight) approach use this format instead of the table. You will either choose

to use the table format OR you will use this format:

Procedure 1 or "Heating a Wooden Splint"

Reactants-

Type of Matter-

Physical Description-

Chemical Changes observed-

Physical Changes observed-

Products-

Type of Matter-

Physical Description-

Conclusions: 1. In what ways is heat involved in chemical change? Cite specific procedures from the experiment. 2. What are some of the substances that dissolve in water. Which do not?

Dissolved (soluble) Not Dissolved (insoluble)

3. What is the color of solutions of copper compounds? 4. List four types of “general” observations that indicate when a chemical change has occurred. They

need not have occurred in this particular lab.