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Chemical Equilibrium & Kinetics

Authored by Valerie Hipp

Chemistry

11th Grade

NGSS covered

Used 19+ times

Chemical Equilibrium & Kinetics
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17 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chemical equilibrium is defined as the state in which the concentrations of reactants and products remain constant over time. Which of the following best describes this state?

The forward and reverse reactions occur at different rates.

The forward and reverse reactions occur at the same rate.

The concentrations of reactants are higher than products.

The concentrations of products are higher than reactants.

Tags

NGSS.HS-PS1-6

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which theory explains the conditions under which chemical reactions occur?

Collision theory

Quantum theory

Relativity theory

String theory

Tags

NGSS.HS-PS1-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Define concentration in terms of chemical reactions.

The amount of a substance in a given volume.

The speed at which a chemical reaction occurs.

The energy required to start a chemical reaction.

The temperature at which a reaction takes place.

Tags

NGSS.HS-PS1-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is meant by reaction rate in chemical kinetics?

The speed at which reactants are converted into products.

The amount of energy required to start a reaction.

The equilibrium constant of a reaction.

The temperature at which a reaction occurs.

Tags

NGSS.HS-PS1-5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A catalyst is:

a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.

a substance that decreases the rate of a chemical reaction and is consumed in the process.

a reactant that is completely used up in a chemical reaction.

a product formed in a chemical reaction.

Tags

NGSS.HS-PS1-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is surface area in the context of chemical reactions?

The total area of the surface of a three-dimensional object.

The measure of how much exposed area a solid object has.

The amount of space occupied by a substance.

The rate at which a chemical reaction occurs.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kinetic energy is the energy possessed by an object due to its:

Position

Motion

Temperature

Shape

Tags

NGSS.HS-PS2-3

NGSS.HS-PS3-2

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