What is the correct equilibrium expression for the following reaction: 2H 2 O 2 (aq) ↔ 2H 2 O(l) + O 2 (g)

[H 2 O] 2 [O 2 ] / [H 2 O 2 ] 2

[H 2 O 2 ] 2 / [H 2 O] 2 [O 2 ]

In which of the following systems would the number of moles of the substances present at equilibrium NOT be shifted by a change in the volume of the system at constant temperature?

NO (g) + O 3 (g) ↔ NO 2 (g) + O 2 (g)

CO (g) + NO (g) ↔ CO 2(g) + ½N 2(g)

Which of the following shows the correct dissolution reaction for BaCl 2 ?

BaCl 2 (s) -> Ba 2+ (aq) + 2Cl - (aq)

Ba 2+ (aq) + Cl 2 - (aq) -> BaCl 2 (s)

BaCl 2 (aq) -> Ba 2+ (aq) + 2Cl - (aq)

Ba 2+ (aq) + 2Cl - (aq) -> BaCl 2 (s)

Which of the following is NOT true at equilibrium?

The concentration of the reactants is equal to the concentration of the products.

The forward and reverse reactions proceed at the same rate.

The concentrations of reactants and products do not change.

The forward and reverse reactions continue to occur.

What is the equilibrium expression for: Fe 3 O 4 (s) + 4H 2 (g) <--> 3Fe(s) + 4H 2 O(g)

([Fe] 3 [H 2 O] 4 ) / ([Fe 3 O 4 ][H 2 ] 4 )

([Fe 3 O 4 ][H 2 ] 4 )/ ([Fe] 3 [H 2 O] 4 )

([Fe][H 2 O]) / ([Fe 3 O 4 ][H 2 ])

There are more products than reactants when the reaction reached equilibrium.

There are more reactant than products when the reaction reached equilibrium.

The amount of reactants is equal to the amount of products.

The reaction quotient for a system is 7.2 × 10 2 . If the equilibrium constant for the system is 36, what will happen as equilibrium is approached?

There will be a net gain in reactant.

There will be a net gain in product

There will be a net gain in both product and reactant

There will be no net gain in either product or reactant.

Why is equilibrium called a dynamic state?

The reactions at equilibrium continue to take place once equilibrium is established.

Chemists try to convert as much reactants as possible into products.

The products of a forward reaction are favored, so equilibrium lies to the right.

All chemical reactions are considered to be reversible under suitable conditions.

AP Chemistry Equilibrium

Quiz

•

Chemistry

•

11th - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-PS1-6, HS-PS1-7, HS-PS1-2

+1

Standards-aligned

Cynthia Hofferth

Used 54+ times

FREE Resource

31 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Given the K_c for a forward reaction, how can you find K_c for the reverse reaction?

Divide K_c by 1

Divide 1 by K_c

Square K_c

Take the square root of K_c

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the reaction...
SO₂ + O₂ <−> SO₃
If the concentration of SO₂is increased, the equilibrium of the reaction will shift ___________.

left

right

left and right

neither left nor right

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the reaction...
heat + N₂ + O₂ ↔ 2NO
If heat is added to the chemical system, the equilibrium will shift _______.

left

right

left and right

neither left nor right

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2SO₂(g)+O₂(g)⇌2SO₃(g)
Decreasing the volume of container will

shift equilibrium right

shift equilibrium left

change K

have no change

Tags

NGSS.HS-PS1-6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the reaction...
N₂ + O₂ <=> 2NO
If O₂ is removed, the concentration of N₂ will _______.

increase

decrease

remain the same

double

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The following reaction :
SO_{2 (g)} + NO_{2 (g)} <=> SO_{3 (g)} + NO (g)
had reached a state of equilibrium, was found to contain
0.40 mol L^-1 SO₃ , and 0.30 mol L^-1 NO,
0.15 mol L^-1NO₂ , and 0.20 mol L^-1 SO₂.
Calculate the equilibrium constant for this reaction.

4.0

0.42

0.25

1.0

Tags

NGSS.HS-PS1-6

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What are the two factors to look for when determining if the reaction is at equilibrium?

Forward reaction rate is faster than the reverse and concentrations are equal

Forward and reverse reaction rates are equal and concentration is conctant

Forward and revers reaction rates are equal and concentration is equal

Forward reaction rate is faster than the reverse and concentration is equal

Tags

NGSS.HS-PS1-6

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AP Chemistry Equilibrium

31 questions

Given the K_c for a forward reaction, how can you find K_c for the reverse reaction?

For the reaction...
SO₂ + O₂ <−> SO₃
If the concentration of SO₂is increased, the equilibrium of the reaction will shift ___________.

For the reaction...
heat + N₂ + O₂ ↔ 2NO
If heat is added to the chemical system, the equilibrium will shift _______.

2SO₂(g)+O₂(g)⇌2SO₃(g)
Decreasing the volume of container will

For the reaction...
N₂ + O₂ <=> 2NO
If O₂ is removed, the concentration of N₂ will _______.

The following reaction :
SO_{2 (g)} + NO_{2 (g)} <=> SO_{3 (g)} + NO (g)
had reached a state of equilibrium, was found to contain
0.40 mol L^-1 SO₃ , and 0.30 mol L^-1 NO,
0.15 mol L^-1NO₂ , and 0.20 mol L^-1 SO₂.
Calculate the equilibrium constant for this reaction.

What are the two factors to look for when determining if the reaction is at equilibrium?

What is [H₂O] if K = 1.2,
[CO₂] = 0.846M, & [CH₄]= 0.0713M?
4CuO_(s)+CH_4(g)↔CO_2(g)+4Cu_(s) +2H₂O_(g)

What is the correct equilibrium expression for the following reaction:
2H₂O₂(aq) ↔ 2H₂O(l) + O₂(g)

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AP Chemistry Equilibrium

31 questions

Given the Kc for a forward reaction, how can you find Kc for the reverse reaction?

For the reaction...SO2 + O2 <−> SO3If the concentration of SO2 is increased, the equilibrium of the reaction will shift ___________.

For the reaction...heat + N2 + O2 ↔ 2NOIf heat is added to the chemical system, the equilibrium will shift _______.

2SO2(g)+O2(g)⇌2SO3(g)Decreasing the volume of container will

For the reaction...N2 + O2 <=> 2NOIf O2 is removed, the concentration of N2 will _______.

The following reaction : SO2 (g) + NO2 (g) <=> SO3 (g) + NO (g)had reached a state of equilibrium, was found to contain 0.40 mol L-1 SO3 , and 0.30 mol L-1 NO, 0.15 mol L-1NO2 , and 0.20 mol L-1 SO2. Calculate the equilibrium constant for this reaction.

What are the two factors to look for when determining if the reaction is at equilibrium?

What is [H2O] if K = 1.2, [CO2] = 0.846M, & [CH4]= 0.0713M?4CuO(s)+CH4(g)↔CO2(g)+4Cu(s) +2H2O(g)

What is the correct equilibrium expression for the following reaction:2H2O2(aq) ↔ 2H2O(l) + O2(g)

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Given the K_c for a forward reaction, how can you find K_c for the reverse reaction?

For the reaction...
SO₂ + O₂ <−> SO₃
If the concentration of SO₂is increased, the equilibrium of the reaction will shift ___________.

For the reaction...
heat + N₂ + O₂ ↔ 2NO
If heat is added to the chemical system, the equilibrium will shift _______.

2SO₂(g)+O₂(g)⇌2SO₃(g)
Decreasing the volume of container will

For the reaction...
N₂ + O₂ <=> 2NO
If O₂ is removed, the concentration of N₂ will _______.

The following reaction :
SO_{2 (g)} + NO_{2 (g)} <=> SO_{3 (g)} + NO (g)
had reached a state of equilibrium, was found to contain
0.40 mol L^-1 SO₃ , and 0.30 mol L^-1 NO,
0.15 mol L^-1NO₂ , and 0.20 mol L^-1 SO₂.
Calculate the equilibrium constant for this reaction.

What is [H₂O] if K = 1.2,
[CO₂] = 0.846M, & [CH₄]= 0.0713M?
4CuO_(s)+CH_4(g)↔CO_2(g)+4Cu_(s) +2H₂O_(g)

What is the correct equilibrium expression for the following reaction:
2H₂O₂(aq) ↔ 2H₂O(l) + O₂(g)