CHEMICAL EQUILIBRIUM

CHEMICAL EQUILIBRIUM

6th - 9th Grade

10 Qs

quiz-placeholder

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CHEMICAL EQUILIBRIUM

CHEMICAL EQUILIBRIUM

Assessment

Quiz

Chemistry

6th - 9th Grade

Practice Problem

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Created by

SYED BM

Used 20+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

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The following reaction aA + bB produce cC + dD.

The realtion that determine the equilibirum constant, Kc is known as

Law of active mass.

Law of mass action.

Law of chemical reactions.

Law of conservation of mass.

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Which of the following statements is CORRECT for a reaction at an equilibrium?

The rate of forward and reverse reactions are equal.

The final concentrations of product and reactant are equal.

The initial concentrations of product and reactant are equal.

The rate constant of the forward and reverse reactions are equal.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

For the graph, choose the CORRECT statement.

The rate of reaction slowly increase

The systems never reach equilibrium

At equilibrium, more NO2 is present than N2O4.

At start of reaction, only NO2 was present.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Equilibria in which all substances are in the same phases are called

dynamic equilibrium.

equilibrium constant.

homogeneous equilibria.

heterogeneous equilibria.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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For the reaction, choose the CORRECT equilibrium constant, Kc.

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6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

From the reaction, choose the CORRECT equilibrium constant, Kp.

Media Image
Media Image
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7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Choose the CORRECT sentence to complete the following Le Chatelier's principle.

"If a chemical system at equilibrium is disturbed, the system will..."

not respond in any way unless a significant change in temperature is made.

stop the chemical reaction and resume only after the disturbance is removed.

shift its equilibrium position in the direction that reduces the effect of the disturbance.

shift its equilibrium position that returns all reactants and products to their original concentrations.

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