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2023

FREE HESI A2 Chemistry Practice Test

Get ready for your 2023 HESI test using the same kind of questions you’ll be answering when you take the real written examination.

4.81 out of 5 based on 73 votes.
Based on 2022 Health Education Systems Incorporated
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Test Details

How Many Questions:

20 questions

Time Limit:

30 min

Format:

Multiple Choice

FREE HESI A2 Chemistry Practice Test

The purpose of this test is to assess your strengths and weaknesses with the HESI Admission Assessment (A2) Exam. Use this free HESI A2 Chemistry practice test to help you prepare for your nursing entrance exam. After you answer each question you will get a detailed answer explanation to help you understand the question better.

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Question 1 of 20

1. Question
What is the metric prefix meaning one hundredth?
- Centi-
- Milli-
- Micro
- Nano
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Question 2 of 20

2. Question
Which law describes the relationship between volume and temperature with constant pressure and volume?
- Boyle’s Law
- Charles’ Law
- Doyle’s Law
- Ideal Gas Law
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Question 3 of 20

3. Question
What term defines the mass-weighted average of the isotope masses that make up an element?
- Atomic mass
- Cell mass
- Atomic radius
- Base radius
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Question 4 of 20

4. Question
What is the name of the law that connects particle count to volume?
- Boyle’s Law
- Charles’ Law
- Doyle’s Law
- Avogadro’s Law
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Question 5 of 20

5. Question
What term defines the maximum strength of strong acid or basic that a buffer can withstand?
- Buffer Capacity
- Calorimetry
- Bond order
- Bond energy
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Question 6 of 20

6. Question
What term defines a functional group made up of an OH group and a carbonyl group?
- Carbonyl group
- Carboxylate ion
- Carboxyl group
- Catalyst
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Question 7 of 20

7. Question
What term defines the affiliation of two atoms within a molecule?
- Chemical bond
- Non-chemical bond
- Atomic bond
- Chemical Change
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Question 8 of 20

8. Question
Which term defines the transformation of a gas into a liquid?
- Condensation
- Conversion
- Liquify
- Critical Point
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Question 9 of 20

9. Question
How is Potassium represented as an element in the periodic table?
- P-
- K+
- P+
- Po+
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Question 10 of 20

10. Question
How could the greenhouse effect be impacted by a hydrogen fuel cell?
- When it operates, it releases carbon dioxide
- In the process of making hydrogen fuel, carbon dioxide is produced
- A small amount of hydrogen escapes from the cell and fuels it.
- It produces more power
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Question 11 of 20

11. Question
What is the pH of an acid?
- >7
- >5.5
- <7
- <6.5
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Question 12 of 20

12. Question
Which of the following is NOT considered an alloy?
- Steel
- Bronze
- Duralumin
- Chromium
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Question 13 of 20

13. Question
Which of the following is NOT a way in which a cell may gain energy?
- Photosynthesis
- Glycolysis
- Oxidative phosphorylation
- Diffusion
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Question 14 of 20

14. Question
Which of the following energy types CANNOT be either absorbed or released as a result of a chemical reaction?
- Electricity
- Sound
- Heat
- Metal
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Question 15 of 20

15. Question
Which of the following is NOT a type of chemical reaction that is important to the human body?
- Exchange
- Oxidation
- Synthesis
- Decomposition
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Question 16 of 20

16. Question
Which of the following is NOT a type of energy transfer?
- Convection
- Conduction
- Radiation
- Oxidation
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Question 17 of 20

17. Question
Which one of the following elements is needed in the process of rusting?
- Oxygen
- Hydrogen
- Nitrogen
- Aluminum
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Question 18 of 20

18. Question
What constitutes the primary energy source in the environment?
- Water
- Oxygen
- Sun
- Heat
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Question 19 of 20

19. Question
What fuels a cell’s chemical energy production?
- ATP
- DHA
- DNA
- ADP
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Question 20 of 20

20. Question
What name is given to a compound that cannot be converted by regular chemical processes into simpler chemical substances?
- Atom
- Ion
- Element
- Proton
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