Question 1

Consider the following endothermic equilibrium reaction: Fe₂O₃(s)+ 3H₂(g)⇌ 2Fe (s)+ 3 O (g) Which of the following actions will result in a shift to the left (towards reactants)?

Accepted Answer

The answer of Consider the following endothermic equilibrium reaction: Fe₂O₃(s)+...

Question 2

Which of the following equilibrium systems will shift to the right (towards products)when pressure is increased.

Accepted Answer

The answer of Which of the following equilibrium systems will...

Question 3

For the reaction 2 
O(g)⇌ 
(g)+ 2 
(g),what happens to the equilibrium position if the volume increases?

Accepted Answer

The answer of For the reaction 2 
O(g)⇌ 
(g)+ 2...

Question 4

For the reaction 2 
O(g)⇌ 
(g)+ 2 
(g),what happens to the equilibrium position if the pressure increases?

Accepted Answer

According to Le Chatelier's principle, when the pressure is increased, the equilibrium will shift in the direction that produces fewer moles of gas. In this case, the left side of the reaction has fewer moles of gas (1 mole of O2) compared to the right side (4 moles of NO2), so the equilibrium will shift to the left side to reduce the pressure by decreasing the number of gas molecules.

Question 5

For the reaction 2 
O(g)⇌ 
(g)+ 2 
(g),what happens to the equilibrium position if the pressure decreases?

Accepted Answer

The answer of For the reaction 2 
O(g)⇌ 
(g)+ 2...

Question 6

For the reaction 
S(s)⇌ 2 
(aq)+ 
(aq),what happens to the equilibrium position if the amount of solid silver sulfide is doubled?

Accepted Answer

The answer of For the reaction 
S(s)⇌ 2 
(aq)+ 
(aq),what...

Question 7

What happens to the equilibrium position of an exothermic reaction when you add heat?

Accepted Answer

Adding heat to an exothermic reaction shifts the equilibrium position to the left, favoring the reactants, according to Le Chatelier's principle.

Question 8

What happens to the equilibrium position of an endothermic reaction when you add heat?

Accepted Answer

Adding heat to an endothermic reaction will increase the yield of products to absorb the extra heat, which means that the equilibrium position will shift to the right to favor the forward reaction. Therefore, choice B is the correct answer.

Question 9

Which compound below is the most soluble in water based on its 
Value?

Accepted Answer

The answer of Which compound below is the most soluble...

Question 10

Which compound below is the most soluble in water based on its 
Value?

Accepted Answer

The higher the solubility product constant (Ksp) value, the more soluble the compound is in water. From the given options, MgCO3 has the highest Ksp value of 6.82, indicating that it is the most soluble in water.

Question 11

For the reaction 
S(s)⇌ 2 
(aq)+ 
(aq),what happens to the equilibrium position if the amount of silver ion is halved?

Accepted Answer

The answer of For the reaction 
S(s)⇌ 2 
(aq)+ 
(aq),what...

Question 12

For the reaction 2 
O(g)⇌ 
(g)+ 2 
(g),what happens to the equilibrium position if the volume decreases?

Accepted Answer

According to Le Chatelier's principle, if the volume of the system is decreased, the equilibrium will shift in the direction that reduces the number of moles of gas. In this case, the left side of the equation has one mole of gas, while the right side has two moles of gas. Therefore, the equilibrium will shift to the left, towards the side with fewer moles of gas, in order to decrease the pressure and restore equilibrium.

Question 13

What happens to the equilibrium position of an endothermic reaction when you remove heat?

Accepted Answer

An endothermic reaction requires heat as a reactant. Therefore, when heat is removed from the system, the equilibrium position shifts in the direction that produces more heat to compensate for the loss. In this case, shifting to the left would produce more heat (as it is the side that requires the heat as a reactant), so the equilibrium position shifts to the left.

Question 14

For the reaction H₂ (g)+ Cl₂ (g)⇌ 2 HCl (g),what happens to the equilibrium position if the pressure increases?

Accepted Answer

The answer of For the reaction H₂ (g)+ Cl₂ (g)⇌...

Question 15

Consider the reaction: 2 
O(g)⇌ 
(g)+ 2 
(g).Which of the following will cause a shift in the equilibrium to the left?
1.Remove 
O
2.Remove 
3.Add

Accepted Answer

The answer of Consider the reaction: 2 
O(g)⇌ 
(g)+ 2...

Question 16

Consider the reaction: 2 
O(g)⇌ 
(g)+ 2 
(g).Which of the following will cause a shift in the equilibrium to the right?
1.Add more 
O
2.Remove 
3.Remove

Accepted Answer

The answer of Consider the reaction: 2 
O(g)⇌ 
(g)+ 2...

Question 17

What happens to the equilibrium position of an exothermic reaction when you remove heat?

Accepted Answer

The answer of What happens to the equilibrium position of...

Question 18

We have the following reaction at equilibrium in a flask, CaSO₄(s)⇌ Ca²⁺(aq)+ SO₄²⁺(aq) What will happen to [Ca²⁺] if additional CaSO₄ is added to the flask?

Accepted Answer

The answer of We have the following reaction at equilibrium...

Question 19

Given the choice of adding ions of Mg ²⁺ (aq),Ca ²⁺(aq),Sr ²⁺ (aq)or Ba ²⁺ (aq)to a solution of carbonate ions,CO₃ ^2-,which choice would precipitate an insoluble carbonate compound first? Use the following Data: MgCO₃ = 6.82 CaCO₃ = 4.96 SrCO₃ = 9.30 BaCO₃ = 5.00

Accepted Answer

The answer of Given the choice of adding ions of...

Question 20

What is the molar solubility, (S),of FeS if the 
For this substance?

Accepted Answer

The answer of What is the molar solubility, (S),of FeS...

Quiz 15: Chemical Equilibrium

Consider the following endothermic equilibrium reaction: Fe₂O₃(s) + 3H₂(g) ⇌ 2Fe (s) + 3 O (g) Which of the following actions will result in a shift to the left (towards reactants) ?

Which of the following equilibrium systems will shift to the right (towards products) when pressure is increased.

For the reaction 2 O(g) ⇌ (g) + 2 (g) ,what happens to the equilibrium position if the volume increases?

For the reaction 2 O(g) ⇌ (g) + 2 (g) ,what happens to the equilibrium position if the pressure increases?

For the reaction 2 O(g) ⇌ (g) + 2 (g) ,what happens to the equilibrium position if the pressure decreases?

For the reaction S(s) ⇌ 2 (aq) + (aq) ,what happens to the equilibrium position if the amount of solid silver sulfide is doubled?

What happens to the equilibrium position of an exothermic reaction when you add heat?

What happens to the equilibrium position of an endothermic reaction when you add heat?

Which compound below is the most soluble in water based on its Value?

Which compound below is the most soluble in water based on its Value?

For the reaction S(s) ⇌ 2 (aq) + (aq) ,what happens to the equilibrium position if the amount of silver ion is halved?

For the reaction 2 O(g) ⇌ (g) + 2 (g) ,what happens to the equilibrium position if the volume decreases?

What happens to the equilibrium position of an endothermic reaction when you remove heat?

For the reaction H₂ (g) + Cl₂ (g) ⇌ 2 HCl (g) ,what happens to the equilibrium position if the pressure increases?

Consider the reaction: 2 O(g) ⇌ (g) + 2 (g) .Which of the following will cause a shift in the equilibrium to the left? 1.Remove O 2.Remove 3.Add

Consider the reaction: 2 O(g) ⇌ (g) + 2 (g) .Which of the following will cause a shift in the equilibrium to the right? 1.Add more O 2.Remove 3.Remove

What happens to the equilibrium position of an exothermic reaction when you remove heat?

We have the following reaction at equilibrium in a flask, CaSO₄(s) ⇌ Ca²⁺(aq) + SO₄²⁺(aq) What will happen to [Ca²⁺] if additional CaSO₄ is added to the flask?

Given the choice of adding ions of Mg ²⁺ (aq) ,Ca ²⁺(aq) ,Sr ²⁺ (aq) or Ba ²⁺ (aq) to a solution of carbonate ions,CO₃ ^2-,which choice would precipitate an insoluble carbonate compound first? Use the following Data: MgCO₃ = 6.82 CaCO₃ = 4.96 SrCO₃ = 9.30 BaCO₃ = 5.00

What is the molar solubility, (S) ,of FeS if the For this substance?

Quiz 15: Chemical Equilibrium

Consider the following endothermic equilibrium reaction: Fe2O3 (s) + 3H2 (g) ⇌ 2Fe (s) + 3 O (g) Which of the following actions will result in a shift to the left (towards reactants) ?

Which of the following equilibrium systems will shift to the right (towards products) when pressure is increased.

For the reaction 2 O(g) ⇌ (g) + 2 (g) ,what happens to the equilibrium position if the volume increases?

For the reaction 2 O(g) ⇌ (g) + 2 (g) ,what happens to the equilibrium position if the pressure increases?

For the reaction 2 O(g) ⇌ (g) + 2 (g) ,what happens to the equilibrium position if the pressure decreases?

For the reaction S(s) ⇌ 2 (aq) + (aq) ,what happens to the equilibrium position if the amount of solid silver sulfide is doubled?

What happens to the equilibrium position of an exothermic reaction when you add heat?

What happens to the equilibrium position of an endothermic reaction when you add heat?

Which compound below is the most soluble in water based on its Value?

Which compound below is the most soluble in water based on its Value?

For the reaction S(s) ⇌ 2 (aq) + (aq) ,what happens to the equilibrium position if the amount of silver ion is halved?

For the reaction 2 O(g) ⇌ (g) + 2 (g) ,what happens to the equilibrium position if the volume decreases?

What happens to the equilibrium position of an endothermic reaction when you remove heat?

For the reaction H2 (g) + Cl2 (g) ⇌ 2 HCl (g) ,what happens to the equilibrium position if the pressure increases?

Consider the reaction: 2 O(g) ⇌ (g) + 2 (g) .Which of the following will cause a shift in the equilibrium to the left? 1.Remove O 2.Remove 3.Add

Consider the reaction: 2 O(g) ⇌ (g) + 2 (g) .Which of the following will cause a shift in the equilibrium to the right? 1.Add more O 2.Remove 3.Remove

What happens to the equilibrium position of an exothermic reaction when you remove heat?

We have the following reaction at equilibrium in a flask, CaSO4(s) ⇌ Ca2+(aq) + SO42+(aq) What will happen to [Ca2+] if additional CaSO4 is added to the flask?

Given the choice of adding ions of Mg 2+ (aq) ,Ca 2+ (aq) ,Sr 2+ (aq) or Ba 2+ (aq) to a solution of carbonate ions,CO3 2-,which choice would precipitate an insoluble carbonate compound first? Use the following Data: MgCO3 = 6.82 CaCO3 = 4.96 SrCO3 = 9.30 BaCO3 = 5.00

What is the molar solubility, (S) ,of FeS if the For this substance?

Consider the following endothermic equilibrium reaction: Fe₂O₃(s) + 3H₂(g) ⇌ 2Fe (s) + 3 O (g) Which of the following actions will result in a shift to the left (towards reactants) ?

For the reaction H₂ (g) + Cl₂ (g) ⇌ 2 HCl (g) ,what happens to the equilibrium position if the pressure increases?

We have the following reaction at equilibrium in a flask, CaSO₄(s) ⇌ Ca²⁺(aq) + SO₄²⁺(aq) What will happen to [Ca²⁺] if additional CaSO₄ is added to the flask?

Given the choice of adding ions of Mg ²⁺ (aq) ,Ca ²⁺(aq) ,Sr ²⁺ (aq) or Ba ²⁺ (aq) to a solution of carbonate ions,CO₃ ^2-,which choice would precipitate an insoluble carbonate compound first? Use the following Data: MgCO₃ = 6.82 CaCO₃ = 4.96 SrCO₃ = 9.30 BaCO₃ = 5.00