Which of the reactants in Data Table 1 showed evidence of a chemical reaction with the aluminum foil?


Which of the reactants in Data Table 1 showed evidence of a chemical reaction with the aluminum foil? Use your observations to explain your.

Which of the reactants in Data Table 1 showed evidence of a chemical reaction with the aluminum foil?

Exercise 1

  1. Which of the reactants in Data Table 1 showed evidence of a chemical reaction with the aluminum foil? Use your observations to explain your

 

  1. List the metals found in each of the four reactants in Data Table 1. Indicate the metal or metals that are more active than aluminum. (See the activity series below.)
  1. Use the activity series to determine whether aluminum would replace the metals in the chemical compounds listed in Data Table 1. Does the activity series’ ability to predict whether or not a reaction will occur agree with your observations?

 

  1. What are the potential sources of error that might cause disagreement between the activity series’ prediction of reactions and your observations of reactions?

 

 

  1. Write a balanced equation for the reaction between silver nitrate and aluminum. What type of reaction is this?

Data Table 1: Observations of Chemical Reactions with Aluminum Foil

 

 

AgNO3 CuSO4 CaCl2 Pb(NO3)2
Start Time
Initial Appearance of Chemical
Initial Appearance of Foil
Observations after 5 Minutes
Observations after 3 Hours
Appearance of Foil after Rinsing

 

Exercise 2

  1. Reviewing Data Table 2, what were the visual cues that chemical reactions occurred?

 

  1. Define a single displacement reaction and a double displacement reaction. Describe the similarities and differences between a single displacement reaction and a double displacement reaction.

 

 

  1. Data Table 2 contains nine double displacement reactions. Write a balanced chemical equation for five of those reactions.

 

  1. Which reactions produced a precipitate? Describe the observations when answering this question.

 

 

  1. Which reactions produced a color change? Describe the change in color for each of these reactions. (For example, the reactants were clear and colorless and the product was a bright pink solution.)

 

 

Data Table 2: Reaction Observations

 

 

Well

Chemical #1 (4 drops) Chemical #1

Appearance

Chemical #2 (4 drops) Chemical #2

Appearance

 

Observations

Chemical Change (Yes/No)
A1
A2
A3
A4
A5
A6
B1
B2
B3
B4
B5
B6
C1
C2

 

Extension Question

Give three examples each of physical and chemical changes you observed in the last 24 hours. Explain in detail why you classified each example as physical or Chemical.

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