HESI A2 Chemistry Course

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Introduction

Free HESI A2 Chemistry Diagnostic Test

1 Quiz
- HESI A2 Chemistry Diagnostic Test (25 Questions)
Topic Quizzes

Scientific Notation, The Metric System, and Temperature Scales

1 Quiz
- Scientific Notation, The Metric System, and Temperature Scales Quiz (20 Questions)
Atomic Structure and The Periodic Table

1 Quiz
- Atomic Structure and The Periodic Table Quiz (20 Questions)
States of Matter

1 Quiz
- States of Matter Quiz (5 Questions)
Reaction Rates, Equilibrium, and Reversibility

1 Quiz
- Reaction Rates, Equilibrium, and Reversibility Quiz (7 Questions)
Solutions and Solution Concentrations

1 Quiz
- Solutions and Solution Concentrations Quiz (12 Questions)
Chemical Reactions

1 Quiz
- Chemical Reactions Quiz (20 Questions)
Oxidation and Reduction

1 Quiz
- Oxidation and Reduction Quiz (10 Questions)
Acids and Bases

1 Quiz
- Acids and Bases Quiz (11 Questions)
Nuclear Chemistry

1 Quiz
- Nuclear Chemistry Quiz (9 Questions)
Biochemistry

1 Quiz
- Biochemistry Quiz (20 Questions)
Timed Practice Test Simulations

HESI A2 Chemistry Practice Tests

5 Quizzes

Quiz 1 of 16

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HESI A2 Chemistry Diagnostic Test (25 Questions)

HESI A2 Chemistry Course Free HESI A2 Chemistry Diagnostic Test HESI A2 Chemistry Diagnostic Test (25 Questions)

This HESI A2 Chemistry Diagnostic Test contains 25 questions that mimic the content, format, and difficulty of the real exam. At the end of the test, you will receive a detailed score report that breaks down your performance by topic, so you will know exactly which HESI A2 Chemistry topics you need to brush up on to quickly improve your score.

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🚀 94% of NurseHub learners report passing their HESI exam on their first try.
🚀 This number goes up to 99% when users complete the entirety of our materials.

Don’t worry if you don’t score as high as you would like. We cover EVERYTHING in the subsequent quizzes so you’ll have lots of opportunities to learn, practice, and improve! 🙌

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Congratulations! You have completed the diagnostic test and are well on your way to beating the HESI A2!

Use the score report below to formulate your study plan of attack. The quizzes that follow are organized by topic so you can focus on improving in specific areas of need.

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Question 1 of 25

1. Question
Normal body temperature is considered to be 98.6^oF. What is the normal body temperature in degrees Celsius?
- 100° C
- 37° C
- 32° F
- 21° C
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Question 2 of 25

2. Question
The mass of a grain of sand is 1.672 × 10^-4 kg. Express this number in standard notation.
- 0.0001672 kg
- 0.00001672 kg
- 1,672 kg
- 1,672,000 kg
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Question 3 of 25

3. Question
Which of the following is the SI unit used to measure the amount of a substance?
- Gram
- Mole
- Kilogram
- Meter
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Question 4 of 25

4. Question
What is the name given to a negatively-charged atom?
- Cation
- Anion
- Ion
- Isotope
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Question 5 of 25

5. Question
Which of the following correctly defines the term isotope?
- Atoms with the same number of protons and electrons, but a different number of neutrons.
- Atoms that have the same number of protons and neutrons, but a different number of electrons.
- Atoms with the same number of neutrons and electrons, but a different number of protons.
- Atoms that have different numbers of neutrons, electrons, and protons.
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Question 6 of 25

6. Question
Which of the following is represented by the atomic number of an element?
- An element’s number of protons and neutrons
- An element’s number of protons, neutrons, and electrons
- An element’s number of protons
- An element’s number of neutrons
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Question 7 of 25

7. Question
Which of the following phase transition describes the change from ice into steam?
- Freezing
- Melting
- Evaporation
- Sublimation
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Question 8 of 25

8. Question
Which of the following pH values is acidic?
- 5
- 7
- 11
- 13
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Question 9 of 25

9. Question
Which of the following describes a single covalent bond?
- A bond that shares one electron pair
- A bond that shares no electron pairs
- A bond that shares a single proton
- A bond that shares two electron pairs
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Question 10 of 25

10. Question
Which of the following describes a catalyst?
- A substance that increases the rate of a chemical reaction
- A solid that precipitates out of a reaction
- A gas that evolves from the reaction
- A substance that slows down a reaction.
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Question 11 of 25

11. Question
What type of bonding exists in NaCl?
- Isotopic
- Stoic
- Synthetic
- Ionic
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Question 12 of 25

12. Question
What is the percent concentration of benzene in a solution containing 59 mL of benzene and 150 mL toluene?
- 56.4 %
- 28.2 %
- 39.3 %
- 14.1 %
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Question 13 of 25

13. Question
In a redox reaction, oxidation is the _______ of electrons and reduction is the _______ of electrons.
- gain, gain
- gain, loss
- loss, gain
- loss, loss
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Question 14 of 25

14. Question
Which of the following is not likely to have a dipole?
- Ionic compound
- Polar compound
- Salt
- Nonpolar compound
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Question 15 of 25

15. Question
How many total amino acids are needed for the human body to produce all the proteins it needs?
- 9
- 11
- 10
- 20
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Question 16 of 25

16. Question
What is the oxidation number of oxygen?
- 1⁺
- 1^–
- 2^–
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Question 17 of 25

17. Question
Which of the following correctly represents the general chemical formula of a carbohydrate?
- (CH₂O)_n
- C₆H₁₂O₆
- (CH₄O)_n
- (CHO)_n
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Question 18 of 25

18. Question
Which of the following does pH measure?
- The concentration of hydroxide ions
- Acid concentration
- The concentration of hydrogen ions
- The strength of an acid
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Question 19 of 25

19. Question
Which of the following is emitted during beta decay?
- Proton
- Electron
- Neutron
- Nucleus
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Question 20 of 25

20. Question
Which of the following represents the general form of a decomposition reaction?
- A + O2 → H2O + CO2
- AB + C → AC + B
- AB → A + B
- AB + CD → AD + BC
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Question 21 of 25

21. Question
Which of the following is not an intermolecular force?
- Metallic bond
- Hydrogen bond
- Dispersion force
- Dipole-dipole interaction
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Question 22 of 25

22. Question
Which of the following states of matter take the shape of the container they are placed in?
- Liquid and gas
- Liquid and solid
- Gas and solid
- Gas, liquid, and solid
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Question 23 of 25

23. Question
Which of the following is the correct term for chemicals on the left side of the reaction arrow?
- Reactants
- Products
- Ions
- Equation
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Question 24 of 25

24. Question
How many days will it take 128 kilograms of a radioactive substance to decay to 16 kilograms if it has a half-life of 32 days?
- 4
- 48
- 3
- 96
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Question 25 of 25

25. Question
Why does increasing the surface area of reactants or catalysts increase the rate of a reaction?
- The activation energy of the reaction is lowered.
- It increases the likelihood of molecules encountering one another.
- It introduces charges on the surface of the particles, which makes them more reactive.
- It reduces the amount of precipitate that is formed during the reaction.
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HESI A2 Chemistry Course

Introduction

HESI A2 Chemistry Diagnostic Test (25 Questions)

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