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Chemical Reaction Lab

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Chemical Reaction Lab
Lab #5
Chemical Reactions & Balancing Equations
Objectives Observe and classify several chemical and physical changes. Give evidence for the occurrence of a chemical reaction. Write a balanced equation for a chemical reaction. Identify a reaction as a combination, decomposition, replacement, or combustion reaction. Background Physical properties can be observed without changing the chemical composition of the substance. Common physical properties that can be measured without changing the chemical composition are melting point, boiling point, solubility and density. Taste and odor are usually considered to be physical properties although they depend on the physiology of the person making the observations. Physical changes do not cause a change …show more content…
What are physical properties? Name: Group Members:

2. Why is the freezing of water called a physical change?

3. What are chemical properties?

4. Why are burning candles and rusting nails examples of chemical changes?

5. What is included in a chemical equation?

6. How does a combination reaction differ from a decomposition reaction?

6

A. Observing and classifying types of changes of matter A.1 Ice Observations: ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ Type of Change: ________________________________________________________________ A.2 Milk and Vinegar Observations: ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ Type of Change: ________________________________________________________________ A.3 Magnesium and Oxygen i. Initial appearance of
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