Question 1

The images show a sequence of molecular representations for a reaction: blue rods and red spheres are present at first, then green ovals appear, and finally only green ovals remain. Which statement best describes what is happening in this reaction?

Accepted Answer

The reaction is proceeding to completion, converting all reactants to products.

Question 2

In the sequence of images showing green rods, blue spheres, and pink ovals, the number of pink ovals increases over time. What does this indicate about the reaction's progress?

Accepted Answer

The reaction is shifting to the right, favoring product formation.

Question 3

The image of a computer connected to a reaction vessel with a coil and a gas cylinder is most likely illustrating which experimental technique for monitoring reaction progress?

Accepted Answer

Pressure measurement

Question 4

The image with a light source, prism, sample cell, and computer is best associated with which method for studying chemical kinetics?

Accepted Answer

Spectroscopy

Question 5

The series of images showing a gradient from white to black (left to right) and from black to white (right to left) are most likely used to illustrate which concept in chemical kinetics or equilibrium?

Accepted Answer

The progress of a reaction from reactants to products

Question 6

The image showing a beaker with a solid at the bottom and a gas being collected is most likely used to illustrate which type of equilibrium?

Accepted Answer

Heterogeneous equilibrium

Question 7

The image with a highway narrowing due to construction is an analogy for which concept in reaction mechanisms?

Accepted Answer

The rate-determining step

Question 8

The sequence of images showing colored spheres above a surface, then some spheres adsorbed, then a reaction occurring, and finally desorption, best illustrates which process?

Accepted Answer

Heterogeneous catalysis

Question 9

The images of a blue object fitting into a brown groove, and then two colored objects fitting into a groove, are best used to illustrate which biochemical concept?

Accepted Answer

Enzyme-substrate specificity (lock-and-key model)

Question 10

The image showing a computer screen with a decaying curve and a sample cell is most likely illustrating which experimental method for following reaction rates?

Accepted Answer

Spectroscopy

Question 11

The sequence of images showing red and blue spheres, then green ovals appearing, and finally only green ovals, is most likely used to illustrate which concept?

Accepted Answer

A reaction proceeding to completion

Question 12

The image of a car with a highlighted exhaust system is most likely used to illustrate which real-world application of catalysis?

Accepted Answer

Catalytic converter in automobiles

Chemical Kinetics and Chemical Equilibrium: Visual Study Guide

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