Name: _______________________________ Date: ____________ Hr: ______
Purpose: In this lab you will observe reactions that demonstrate the five different types of reactions you have learned about. You will determine the products of the reactions and describe properties of the products.
Prelab: Before you perform any of the experiments, you must determine the products of each reaction. Write the balanced equation for each reaction and identify the reaction type.
Reaction 1: Zinc reacts with a solution of Copper (II) sulfate.
Balanced Equation:
Reaction type:
What caused the initial solution to be blue? Why did its color change?
Copper (II) sulfate
Zinc
Before Combining After Combining
What was the solid material that remained in the bottom of the test tube? How do you know?
Reaction 2:
Solutions of Copper (II) chloride and Silver (I) nitrate are combined.
Balanced Equation:
Reaction type:
What do you think caused the
Before Combining After Combining color change you observed?
Why?
Copper (II) chloride
Silver (I) nitrate
Why does the white substance settle to the bottom of the test tube?
Reaction 3:
Magnesium metal reacts with Hydrogen chloride (hydrochloric acid).
Balanced Equation:
Reaction type:
Where was the Magnesium after the reaction was complete? How do you know?
What substance caused the “Pop” observed during the flame test?
Reaction
Flame Test
Observations
Reaction 4:
Hydrogen peroxide (H
2
O
2
) is heated, releasing water and oxygen gas.
Balanced Equation:
Reaction type:
Was the solution boiling? Why or why not?
What gas caused the observations you made during the heat test?
Reaction
Heat (touch)
Test
Observations
Reaction 5: Magnesium metal combines with oxygen.
Balanced Equation:
Reaction type:
Where does the oxygen come from in this reaction?
Magnesium
Oxygen
How do you know that you are burning oxygen?
Before Combining After Combining
Reaction 6: Ethanol burns in the presence of oxygen.
Balanced Equation:
Reaction type:
How can the hand sanitizer burn but the table not?
Observations
Station 7: On course website under unit 3 >> Chemical reactions
>> types of reactions practice, begin working on types of reactions practice sheet… due Tuesday in class before quiz