Podcast
Questions and Answers
Which of the following best describes a single displacement reaction?
Which of the following best describes a single displacement reaction?
- A reaction where a compound breaks down into its elements.
- A reaction where an element switches places with another element in a compound. (correct)
- A reaction where two elements combine to form a compound.
- A reaction where ions in two compounds exchange places.
What type of ions are involved in cation replacement reactions?
What type of ions are involved in cation replacement reactions?
- Positively charged ions (correct)
- Both positively and negatively charged ions
- Neutral ions
- Negatively charged ions
In a single displacement reaction between iron and copper sulfate, what happens to the iron?
In a single displacement reaction between iron and copper sulfate, what happens to the iron?
- It displaces copper from the solution. (correct)
- It remains unchanged.
- It forms a new compound with sulfate.
- It dissolves completely.
Which of the following statements is correct regarding the reactivity series of metals?
Which of the following statements is correct regarding the reactivity series of metals?
What is the key difference between a cation replacement reaction and an anion replacement reaction?
What is the key difference between a cation replacement reaction and an anion replacement reaction?
In the halogen activity series (F > Cl > Br > I), which halogen can displace bromine from a solution of sodium bromide?
In the halogen activity series (F > Cl > Br > I), which halogen can displace bromine from a solution of sodium bromide?
Which of the following metals will NOT react with dilute hydrochloric acid (HCl) to produce hydrogen gas?
Which of the following metals will NOT react with dilute hydrochloric acid (HCl) to produce hydrogen gas?
Why is it important to clean the iron nails with sandpaper before immersing them in copper sulphate solution in the experiment?
Why is it important to clean the iron nails with sandpaper before immersing them in copper sulphate solution in the experiment?
If a piece of silver metal is placed in a solution of zinc nitrate, what would you expect to observe?
If a piece of silver metal is placed in a solution of zinc nitrate, what would you expect to observe?
Which of the following is an example of an anion displacement reaction?
Which of the following is an example of an anion displacement reaction?
In the experimental setup with iron nails and copper sulfate solution, what visual evidence suggests that a single displacement reaction has occurred?
In the experimental setup with iron nails and copper sulfate solution, what visual evidence suggests that a single displacement reaction has occurred?
What is the purpose of keeping one iron nail in a Petri dish during the experiment with copper sulphate solution?
What is the purpose of keeping one iron nail in a Petri dish during the experiment with copper sulphate solution?
A student observes that when a zinc strip is placed in a lead(II) nitrate solution, lead metal precipitates out. What can be concluded from this observation?
A student observes that when a zinc strip is placed in a lead(II) nitrate solution, lead metal precipitates out. What can be concluded from this observation?
Consider the reaction: $2AgNO_3(aq) + Cu(s) \rightarrow Cu(NO_3)_2(aq) + 2Ag(s)$. What type of reaction is this, and what does it indicate about the relative reactivity of copper and silver?
Consider the reaction: $2AgNO_3(aq) + Cu(s) \rightarrow Cu(NO_3)_2(aq) + 2Ag(s)$. What type of reaction is this, and what does it indicate about the relative reactivity of copper and silver?
Which of the following is NOT a typical characteristic of single displacement reactions?
Which of the following is NOT a typical characteristic of single displacement reactions?
What outcome would one expect if a less reactive metal is introduced to a salt solution containing a more reactive metal?
What outcome would one expect if a less reactive metal is introduced to a salt solution containing a more reactive metal?
You have a solution of $NiCl_2(aq)$ and a piece of solid zinc, $Zn(s)$. Will a single displacement reaction occur? If so, what will the products be?
You have a solution of $NiCl_2(aq)$ and a piece of solid zinc, $Zn(s)$. Will a single displacement reaction occur? If so, what will the products be?
Which of the following is the correct procedure for setting up the experiment with iron nails and copper sulphate to observe single displacement?
Which of the following is the correct procedure for setting up the experiment with iron nails and copper sulphate to observe single displacement?
Given two unknown metals, X and Y, how could you experimentally determine their relative reactivity using single displacement reactions?
Given two unknown metals, X and Y, how could you experimentally determine their relative reactivity using single displacement reactions?
A student performs a single displacement reaction using two unknown metals, A and B, and their respective nitrate solutions, $A(NO_3)_2(aq)$ and $B(NO_3)_2(aq)$. The student records their observations in the table below:
Experiment
Reactants
Observations
1
Metal A + $B(NO_3)_2(aq)$
No reaction
2
Metal B + $A(NO_3)_2(aq)$
Metal A deposits on Metal B
Based on these observations, which of the following statements is most accurate?
A student performs a single displacement reaction using two unknown metals, A and B, and their respective nitrate solutions, $A(NO_3)_2(aq)$ and $B(NO_3)_2(aq)$. The student records their observations in the table below:
| Experiment | Reactants | Observations |
|---|---|---|
| 1 | Metal A + $B(NO_3)_2(aq)$ | No reaction |
| 2 | Metal B + $A(NO_3)_2(aq)$ | Metal A deposits on Metal B |
Based on these observations, which of the following statements is most accurate?
Which of the following provides the most accurate explanation for why a metal's position in the electrochemical series dictates its ability to displace other metals?
Which of the following provides the most accurate explanation for why a metal's position in the electrochemical series dictates its ability to displace other metals?
In an experiment to study single displacement reactions, a student mixes zinc metal with hydrochloric acid and observes the evolution of a gas. The student collects the gas and tests it with a burning splint. The splint 'pops'. Which of the following statements is the BEST interpretation of this observation?
In an experiment to study single displacement reactions, a student mixes zinc metal with hydrochloric acid and observes the evolution of a gas. The student collects the gas and tests it with a burning splint. The splint 'pops'. Which of the following statements is the BEST interpretation of this observation?
Consider the following single displacement reaction: $A + BX \rightarrow AX + B$. Under what conditions would _no_ reaction occur?
Consider the following single displacement reaction: $A + BX \rightarrow AX + B$. Under what conditions would _no_ reaction occur?
A student mixes aluminum metal with copper(II) chloride in an aqueous solution, aiming to perform a single displacement reaction. The balanced reaction is: $2Al(s) + 3CuCl_2(aq) \rightarrow 2AlCl_3(aq) + 3Cu(s)$. After some time, the student observes the formation of a reddish-brown solid and notices that the solution is changing color. Which of the following statements is the MOST reasonable inference based exclusively on principles from the single displacement reaction?
A student mixes aluminum metal with copper(II) chloride in an aqueous solution, aiming to perform a single displacement reaction. The balanced reaction is: $2Al(s) + 3CuCl_2(aq) \rightarrow 2AlCl_3(aq) + 3Cu(s)$. After some time, the student observes the formation of a reddish-brown solid and notices that the solution is changing color. Which of the following statements is the MOST reasonable inference based exclusively on principles from the single displacement reaction?
A scientist performs the reaction of Iron (Fe) and Hydrochloric Acid (HCl). She notices a gas is produced. When she performs the same reaction with Gold (Au) and Hydrochloric Acid, no gas is produced. What can you conclude about the relative reactivity of these two metals?
A scientist performs the reaction of Iron (Fe) and Hydrochloric Acid (HCl). She notices a gas is produced. When she performs the same reaction with Gold (Au) and Hydrochloric Acid, no gas is produced. What can you conclude about the relative reactivity of these two metals?
Aqueous solutions of Silver Nitrate ($AgNO_3$), Copper(II) Sulfate ($CuSO_4$), and Zinc Chloride ($ZnCl_2$) are prepared. A piece of Nickel metal is dipped into each of the solutions. In which solution(s) would you expect Nickel to displace the metal ion?
Aqueous solutions of Silver Nitrate ($AgNO_3$), Copper(II) Sulfate ($CuSO_4$), and Zinc Chloride ($ZnCl_2$) are prepared. A piece of Nickel metal is dipped into each of the solutions. In which solution(s) would you expect Nickel to displace the metal ion?
What is the purpose of the strand that connects the iron nail to the retort stand in the illustrated experiment?
What is the purpose of the strand that connects the iron nail to the retort stand in the illustrated experiment?
How does understanding single displacement reactions help in industrial processes such as metal extraction?
How does understanding single displacement reactions help in industrial processes such as metal extraction?
Balance the following reaction: $Al(s) + H_2SO_4(aq) \rightarrow Al_2(SO_4)_3(aq) + H_2(g)$. What is the coefficient for $H_2SO_4$ in the balanced equation?
Balance the following reaction: $Al(s) + H_2SO_4(aq) \rightarrow Al_2(SO_4)_3(aq) + H_2(g)$. What is the coefficient for $H_2SO_4$ in the balanced equation?
Which of the following is the most direct evidence of a chemical reaction, rather than a physical change, occurring during a single displacement reaction?
Which of the following is the most direct evidence of a chemical reaction, rather than a physical change, occurring during a single displacement reaction?
How could you differentiate between a single displacement reaction and a double displacement reaction?
How could you differentiate between a single displacement reaction and a double displacement reaction?
In the context of the experiment with iron nails and copper sulphate, what would happen if the copper sulphate solution was replaced with iron(II) sulphate solution?
In the context of the experiment with iron nails and copper sulphate, what would happen if the copper sulphate solution was replaced with iron(II) sulphate solution?
A student accidentally uses a copper nail instead of an iron nail in the single displacement experiment. Considering copper's position in the reactivity series, what observation would the student likely make?
A student accidentally uses a copper nail instead of an iron nail in the single displacement experiment. Considering copper's position in the reactivity series, what observation would the student likely make?
Why are non-metals also able to participate in single displacement reactions?
Why are non-metals also able to participate in single displacement reactions?
Consider the following scenario: A chemist adds chlorine gas ($Cl_2$) to a solution containing both bromide ($Br^$) and iodide ($I^$) ions. What would be the expected outcome based on the halogen activity series?
Consider the following scenario: A chemist adds chlorine gas ($Cl_2$) to a solution containing both bromide ($Br^$) and iodide ($I^$) ions. What would be the expected outcome based on the halogen activity series?
Given the following two half-reactions and their standard reduction potentials:
$Cu^{2+}(aq) + 2e^- \rightarrow Cu(s) \quad E^o = +0.34 V$
$Ag^{+}(aq) + e^- \rightarrow Ag(s) \quad E^o = +0.80 V$
What will happen if solid copper is added to a silver nitrate ($AgNO_3$) solution, and why?
Given the following two half-reactions and their standard reduction potentials:
$Cu^{2+}(aq) + 2e^- \rightarrow Cu(s) \quad E^o = +0.34 V$ $Ag^{+}(aq) + e^- \rightarrow Ag(s) \quad E^o = +0.80 V$
What will happen if solid copper is added to a silver nitrate ($AgNO_3$) solution, and why?
A scientist tests single displacement reactions with hypothetical elements X, Y, and Z. They find that X displaces Y from its salt, but Z does not displace either X or Y from their salts. Arrange the elements in order of decreasing reactivity.
A scientist tests single displacement reactions with hypothetical elements X, Y, and Z. They find that X displaces Y from its salt, but Z does not displace either X or Y from their salts. Arrange the elements in order of decreasing reactivity.
Consider a scenario using the single-displacement of silver by placing copper into silver nitrate solution ($Cu(s) + 2AgNO_3(aq) \rightarrow Cu(NO_3)_2(aq) + 2Ag(s)$).
If you start with 10.0 grams of copper, what mass of silver is produced?
Consider a scenario using the single-displacement of silver by placing copper into silver nitrate solution ($Cu(s) + 2AgNO_3(aq) \rightarrow Cu(NO_3)_2(aq) + 2Ag(s)$).
If you start with 10.0 grams of copper, what mass of silver is produced?
Which of the following is a reason single displacement reactions wouldn't occur?
Which of the following is a reason single displacement reactions wouldn't occur?
What type of chemical reaction is represented by a more reactive element displacing a less reactive element from its compound?
What type of chemical reaction is represented by a more reactive element displacing a less reactive element from its compound?
What is the correct order of halogen reactivity, from most reactive to least reactive?
What is the correct order of halogen reactivity, from most reactive to least reactive?
In the context of single displacement reactions, what is the role of the electrochemical series?
In the context of single displacement reactions, what is the role of the electrochemical series?
During a single displacement reaction, what observation would indicate that copper is being displaced from a copper sulfate solution?
During a single displacement reaction, what observation would indicate that copper is being displaced from a copper sulfate solution?
Why is it important to rub the iron nails with sandpaper before using them in the copper sulfate experiment?
Why is it important to rub the iron nails with sandpaper before using them in the copper sulfate experiment?
In a single displacement reaction, what type of ion is replaced in a cation replacement reaction?
In a single displacement reaction, what type of ion is replaced in a cation replacement reaction?
Which of the following is a characteristic of metals that can displace other metals from salt solutions?
Which of the following is a characteristic of metals that can displace other metals from salt solutions?
In the reaction between zinc and dilute sulfuric acid, what gas is produced?
In the reaction between zinc and dilute sulfuric acid, what gas is produced?
What is the expected outcome if a small amount of silver metal is placed in a solution of copper(II) sulfate?
What is the expected outcome if a small amount of silver metal is placed in a solution of copper(II) sulfate?
Why is the single displacement reaction $Zn + H_2SO_4 \rightarrow ZnSO_4 + H_2$ commonly used in laboratories?
Why is the single displacement reaction $Zn + H_2SO_4 \rightarrow ZnSO_4 + H_2$ commonly used in laboratories?
In the copper sulfate and iron nail experiment, what is the purpose of leaving one iron nail in a Petri dish?
In the copper sulfate and iron nail experiment, what is the purpose of leaving one iron nail in a Petri dish?
Which metal, when placed in hydrochloric acid (HCl), would likely produce hydrogen gas, and why?
Which metal, when placed in hydrochloric acid (HCl), would likely produce hydrogen gas, and why?
In the reaction $Cl_2(g) + 2NaBr(aq) \rightarrow 2NaCl(aq) + Br_2(g)$, what is happening to the bromide ions ($Br^-$)?
In the reaction $Cl_2(g) + 2NaBr(aq) \rightarrow 2NaCl(aq) + Br_2(g)$, what is happening to the bromide ions ($Br^-$)?
Which of the following is a suitable method to increase the rate of displacement of copper ions from copper sulphate solution?
Which of the following is a suitable method to increase the rate of displacement of copper ions from copper sulphate solution?
How does the concentration of the copper sulfate solution affect the rate of reaction in the single displacement experiment with iron nails?
How does the concentration of the copper sulfate solution affect the rate of reaction in the single displacement experiment with iron nails?
A student places a piece of zinc metal into a solution of $Mg(NO_3)_2(aq)$. What will likely happen?
A student places a piece of zinc metal into a solution of $Mg(NO_3)_2(aq)$. What will likely happen?
In a single displacement reaction involving halogens, which of the following statements is correct about their reactivity?
In a single displacement reaction involving halogens, which of the following statements is correct about their reactivity?
Consider the reaction: $2AgNO_3(aq) + Cu(s) \rightarrow Cu(NO_3)_2(aq) + 2Ag(s)$. Which statement accurately describes the roles of copper and silver in this reaction?
Consider the reaction: $2AgNO_3(aq) + Cu(s) \rightarrow Cu(NO_3)_2(aq) + 2Ag(s)$. Which statement accurately describes the roles of copper and silver in this reaction?
How can you determine the relative reactivity of two unknown metals, X and Y, using single displacement reactions?
How can you determine the relative reactivity of two unknown metals, X and Y, using single displacement reactions?
If you place a piece of lead metal into a solution of $ZnCl_2$, will a single displacement reaction occur? Choose the correct explanation.
If you place a piece of lead metal into a solution of $ZnCl_2$, will a single displacement reaction occur? Choose the correct explanation.
What is the role of a metal's position in the electrochemical series, in the context of single displacement reactions?
What is the role of a metal's position in the electrochemical series, in the context of single displacement reactions?
Consider the displacement reaction between $Mg(s)$ and $CuSO_4(aq)$. What would be observed?
Consider the displacement reaction between $Mg(s)$ and $CuSO_4(aq)$. What would be observed?
Why can non-metals also participate in single displacement reactions?
Why can non-metals also participate in single displacement reactions?
Which of the following is the most accurate description of a single displacement reaction's practical application in metal extraction?
Which of the following is the most accurate description of a single displacement reaction's practical application in metal extraction?
Consider the reaction between Iron (Fe) and Hydrochloric Acid (HCl). Only Iron(II) Chloride ($FeCl_2$) can practically form, not Iron(III) Chloride ($FeCl_3$). What does the observation of gas production alongside the formation of Iron(II) Chloride suggest?
Consider the reaction between Iron (Fe) and Hydrochloric Acid (HCl). Only Iron(II) Chloride ($FeCl_2$) can practically form, not Iron(III) Chloride ($FeCl_3$). What does the observation of gas production alongside the formation of Iron(II) Chloride suggest?
Consider a scenario where zinc is placed into Iron(II) sulfate. What visual evidence (if any) would indicate that a single displacement reaction occurred?
Consider a scenario where zinc is placed into Iron(II) sulfate. What visual evidence (if any) would indicate that a single displacement reaction occurred?
A student combines $Ni(s)$ with Silver Nitrate ($AgNO_3$). What happens?
A student combines $Ni(s)$ with Silver Nitrate ($AgNO_3$). What happens?
A student mixes aluminum metal with copper(II) chloride in an aqueous solution, aiming to perform a single displacement reaction. The balanced reaction is: $2Al(s) + 3CuCl_2(aq) \rightarrow 2AlCl_3(aq) + 3Cu(s)$. What type of ion do you predict Aluminum to form?
A student mixes aluminum metal with copper(II) chloride in an aqueous solution, aiming to perform a single displacement reaction. The balanced reaction is: $2Al(s) + 3CuCl_2(aq) \rightarrow 2AlCl_3(aq) + 3Cu(s)$. What type of ion do you predict Aluminum to form?
Consider the single-displacement of silver by placing copper into silver nitrate solution ($Cu(s) + 2AgNO_3(aq) \rightarrow Cu(NO_3)_2(aq) + 2Ag(s)$). You start with 10.0 grams of copper and have excess Silver Nitrate. What is the limiting reactant?
Consider the single-displacement of silver by placing copper into silver nitrate solution ($Cu(s) + 2AgNO_3(aq) \rightarrow Cu(NO_3)_2(aq) + 2Ag(s)$). You start with 10.0 grams of copper and have excess Silver Nitrate. What is the limiting reactant?
The student accidentally uses a copper nail instead of an iron nail in the single displacement experiment. Noting that the student uses Ferrous Sulfate ($FeSO_4$) solution, what observation would the student likely make?
The student accidentally uses a copper nail instead of an iron nail in the single displacement experiment. Noting that the student uses Ferrous Sulfate ($FeSO_4$) solution, what observation would the student likely make?
In the single displacement reaction between Iron (Fe) and Copper(II) Sulfate ($CuSO_4$), which of the following changes would likely slow down the reaction?
In the single displacement reaction between Iron (Fe) and Copper(II) Sulfate ($CuSO_4$), which of the following changes would likely slow down the reaction?
An experiment attempts to react Zinc and an acid, but no hydrogen gas is formed. Suggest a reason why.
An experiment attempts to react Zinc and an acid, but no hydrogen gas is formed. Suggest a reason why.
Consider the single-displacement of silver by placing copper into silver nitrate solution ($Cu(s) + 2AgNO_3(aq) \rightarrow Cu(NO_3)_2(aq) + 2Ag(s)$). You start with 10.0 grams of copper. What mass of silver is produced?
Consider the single-displacement of silver by placing copper into silver nitrate solution ($Cu(s) + 2AgNO_3(aq) \rightarrow Cu(NO_3)_2(aq) + 2Ag(s)$). You start with 10.0 grams of copper. What mass of silver is produced?
Let's say we performed the experiment on the International Space Station, in zero gravity. How would that affect the single replacement of Iron and Copper(II) Sulfate?
Let's say we performed the experiment on the International Space Station, in zero gravity. How would that affect the single replacement of Iron and Copper(II) Sulfate?
Flashcards
Displacement Reaction
Displacement Reaction
A chemical reaction where a more reactive element replaces a less reactive one in a compound.
Reactivity Series
Reactivity Series
The arrangement of metals in order of their relative reactivity, determining which can displace others.
Cation Replacement
Cation Replacement
A reaction where one cation (positive ion) replaces another in a solution.
Anion Replacement
Anion Replacement
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Metal Displacement Rule
Metal Displacement Rule
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Displacement Reaction Rule
Displacement Reaction Rule
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Iron and Copper Sulfate Reaction
Iron and Copper Sulfate Reaction
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Halogens
Halogens
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Iron nails Experiment
Iron nails Experiment
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Activity Series and Displacement
Activity Series and Displacement
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Halogen Activity Series
Halogen Activity Series
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Cation Definition
Cation Definition
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Anion Definition
Anion Definition
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Metal + Dilute Acid
Metal + Dilute Acid
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Study Notes
- Single displacement reactions involve a more reactive element displacing a less reactive one from its compound.
- Students should gain an understanding of single displacement and cationic displacement reactions
- Students will classify metals by their ability to displace others in salt solutions to demonstrate single displacement reactions with iron nails and copper sulfate, and distinguish them from other reactions.
Displacement Reactions
- Metals and non-metals can participate in displacement reactions.
- Iron nails reacting with copper sulfate solution exemplifies a displacement reaction.
Reactivity Series
- Chemical reactivity is related to an element's position in the electrochemical series.
- Metals that are higher in the activity series can displace metals lower in the series from aqueous salt solutions.
- Non-metals, like halogens, also undergo displacement reactions, for example the activity series for halogens is: F > Cl > Br > I.
- Elements forming cations can only displace cations, while elements forming anions can only displace anions.
Cation Replacement Reactions
- In cation replacement, a cation is replaced by another from its solution, this type of reaction commonly involves metal displacement.
- Magnesium displacing copper from copper sulfate solution is a notable example; the blue copper sulphate solution turns brown as the displaced cooper is deposited, the equation for this reaction is: Mg(s) + CuSO4(aq) → MgSO4(aq) + Cu(s).
- Metals positioned above hydrogen in the reactivity series can displace hydrogen from dilute acids.
- Potassium, sodium, and lithium react vigorously with dilute acids, forming metal salts and hydrogen gases.
- Metals such as aluminum, zinc, magnesium, and iron react safely with dilute acids.
- Zinc reacts with dilute sulfuric acid to produce hydrogen gas: Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g).
Anion Replacement Reactions
- Anion replacement involves one anion replacing another from its solution and typically features more reactive halogens displacing less reactive ones.
- Chlorine displaces bromine from a sodium bromide solution, the equation for this is: Cl2(g) + 2NaBr(aq) → 2NaCl(aq) + Br2(g).
- Bromine replaces iodine from potassium iodide solution, the equation for which is: Br2(g) + 2KI(aq) → 2KBr(aq) + I2(aq)
- If a less reactive metal is added to a salt solution of a more reactive metal, no reaction occurs.
Materials Needed for Demonstration
- The following materials are needed to demonstrate single displacement reactions; iron nails, sand paper, test tubes, copper sulphate solution, thread
Procedure
- To perform the reaction:
- Clean two iron nails with sandpaper until they appear grayish.
- Place copper sulphate solution in two test tubes and clamp the test tubes to different stands.
- Suspend one nail in one of the test tubes, keeping the other in a Petri dish for comparison.
- Observe for 15 minutes ensuring the test tubes are undisturbed
- Remove the immersed nail and place it in the Petri dish for comparison.
Experiment Guide Questions
- What is the objective of this experiment involving iron nails and copper sulphate solution?
- What chemical reaction is expected to occur during the experiment?
- How does the appearance of the iron nails change after they are cleaned?
- Describe the preparation of the copper sulphate solution for use in the experiment.
- What concentration of copper sulphate solution is used, and why?
- Explain the setup of the experimental apparatus involving test tubes, stands, and iron nails.
- Why are the iron nails placed differently in the test tubes and Petri dish?
- What changes, if any, are expected to occur during this observation period?
- How does suspending the iron nail facilitate the observation of the reaction?
- Why is another iron nail kept in the Petri dish for comparison after the experiment?
- What differences are expected between the treated and untreated iron nails?
- Describe the observations made during and after the experiment.
- What evidence suggests that a chemical reaction has occurred between the iron nail and copper sulphate solution?
- What is the significance of the changes observed in the iron nail and copper sulphate solution?
- How do these observations align with the principles of single displacement reactions?
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