Chemistry hesi a2 practice test

Welcome to the HESI A2 practice test page.

The links below will help you take our sample HESI practice test.

These HESI practice questions will give you a better idea of what to study on your exam.

If you need additional practice questions get our HESI A2 study guide and flashcards.

Good luck with your studying.

Upgrade to our best HESI A2 study guide and flashcards resource.

HESI Admission Assessment Exam Review

Practice For the HESI A2 the Best Way

Scoring well on the HESI A2 is crucial to being accepted for admission into nursing school. How can you prepare for this important exam in the most efficient way? The best approach is to use a variety of study materials and to verify your readiness for the test by taking HESI A2 practice tests. Mometrix Academy provides free resources to assist you in this endeavor. The links above give you access to practice test study guides that cover all the subjects included on the HESI: Anatomy and Physiology, Biology, Chemistry, English, and Math. You can also take free practice tests. A HESI A2 practice test will assess your knowledge and skills and provide an indication of how prepared you are for the actual HESI A2 test. A practice test will also reveal any areas that need further study and understanding. To ensure the most effective use of your time, take the HESI A2 practice test for the first time and indicate next to each question which of the following statements is true.

• I confidently knew the correct answer
• I chose the correct answer but was unsure of my choice
• I had no idea which option was the correct answer

Asking yourself these questions will help you determine your areas of strength and weakness so that you can wisely focus your study time on the areas that need the most work. Obviously, the questions that you answered correctly don’t require a lot of study; however, you will want to review this material to confirm that you have a thorough understanding of the concept. In other words, you need to know why it is the correct answer. The questions that you answered correctly but were unsure about need more time and focus. Perhaps you partially understood the topic of the question but not thoroughly. The questions that you were completely at a loss as to the correct answer are the areas that will require the most time and effort. Was the question confusing to you? Were there words that were unfamiliar to you? Don’t be discouraged about these HESI practice exam questions! Mometrix can provide you with all the help you need to prepare and score well on the HESI A2.

HESI A2 Practice Methods

As you prepare for the HESI, you may want to use the following approach:

• Take a practice test making note of each question as outlined above. Have your HESI A2 study materials available. Don’t worry about how long it takes you this first time.
• Use the free HESI A2 study materials available to you from Mometrix Academy to gain a better understanding of the concepts you struggled with. There are links above to videos that explain all the critical concepts you need to grasp in order to score well on the HESI.
• Take another practice test trying to use your resources as little as possible.
• After taking the first two HESI A2 practice tests, take all other practice tests like it is the real HESI test. Take them in a timely manner and take the test without any of your resources.
• If you need additional instruction, check out the Mometrix flashcards and study guide which includes additional practice tests. These invaluable resources include a risk-free, 1-year 100% money-back guarantee. Repetition and practice is key to adequate preparation.

The Chemistry exam is one of seven tests that is part of the Health Education Systems, Inc (HESI) Admission Assessment (A2) exam. Nurse education programs use the HESI A2 to predict a student’s potential in a challenging educational program.

HESI A2 Test Study Guide with Practice Questions

Is the exam an entrance exam for the nursing program I want to attend?

The short answer is probably. Schools use the HESI A2 exam to predict the likelihood of a student completing their nursing program. Most programs require the HESI A2 as a part of their application process. The required tests vary by program. Some require five of the seven subtests; some require all seven of the subtests. Your program advisor will let you know if you need to take the HESI A2, and if so, which subtests are required.

I have to take the HESI A2 Chemistry exam; how do I register?

Your program advisor will help you register for the required exams. Most of the time, the tests are delivered on campus, and the cost varies from school to school. Your program advisor will have the information you need to register – location, dates, times, cost, and which exams to take. You may have the option to take the required exams one at a time, but you may be required to take all exams at once. Communicate with your advisor, so your application is complete on the first attempt.

The Chemistry subtest of the HESI A2 is usually only required by nursing programs that have a chemistry pre-requisite. Before you register for it, make sure it is a test that you have to take, so you don’t waste time or money preparing for it.

How is the Chemistry exam delivered?

The computer-delivered test consists of 30 multiple-choice questions. Of the 30 questions, only 25 questions count toward your score. Five questions are pilot questions for possible inclusion in future exams. You cannot distinguish between the scored and un-scored questions.

An on-screen calculator is provided.

Generally, you have 25 minutes to complete the Chemistry component of the HESI 2A. However, schools can set their time limits; check with your program for the time allotted.

How difficult are the questions in the Chemistry component?

You are expected to have a level of chemistry knowledge that graduating high school seniors are expected to have. You will need to have a working understanding of matter and its components, atoms and their structure, the chemical bonding process, the periodic table of elements, states of water, and basic chemical equations and reactions.

What is the content of the Chemistry subtest?

The Chemistry subtest is a general education assessment. While there is a lot of information covered, there are only 30 questions. Your knowledge of terms, formulas, basic equations, and basic chemical reactions will assist you throughout the exam.

Content of the Chemistry subtest include:

• Scientific Notation
• The Metric System
• Temperature Scales
• Atomic structure
• The Periodic Table
• Chemical equations
• Reaction rates
• Equilibrium
• Reversibility
• Solutions and Solution concentrations
• Chemical reactions
• Stoichiometry
• Oxidation and reduction
• Acids and Bases
• Nuclear chemistry
• Biochemistry

HESI A2 Chemistry Practice Test

What can I expect on the day of my exam?

On the day of your exam, arrive at least 15 minutes early to complete the pre-test paperwork. Bring your valid, government-issued identification, and leave your belongings at home or in your car. At your testing station, the test proctor reviews the rules of the exam and provides you with scratch paper and a pencil. You have an opportunity to become familiar with the operation of the computer before your exam begins.

The standard time allotment for the Chemistry subtest is 25 minutes for 30 questions. However, your college program can change the testing time to add or subtract time. The test proctor will let you know how long you have for the exam, and there is a countdown clock on the computer to help you keep track of time.

After you have completed the exam, return the scratch paper to the proctor.

How do I get my test score?

To review your test score(s), log in to your account. Your detailed score report is found in the exam section. The report lists your score with feedback for each content area.

Is there a passing score?

Each program determines the passing score for entrance into their nursing program. The higher your score, the better your chances at acceptance into the program. Generally, the minimum passing score is 75%. Your program advisor should provide the information on the minimum passing score, as well the score that increases your success at being admitted to their nursing program.

What if I don’t pass?

Generally, if you need to retake the exam, there is a waiting period before you can retake the exam. Ask your program advisor for details on any required remediation courses and retakes.

Steady preparation

The Chemistry exam can be daunting if you are not prepared. Mometrix Test Preparation and their test experts have developed flashcards, step-by-step tutorial videos, and a study guide designed to give you peace of mind while you prepare for the next step in your nursing education. A 100% money-back guarantee ensures your satisfaction – not only with your test results but the quality of your study plan.

The HESI A2 Chemistry Test consists of 25 questions related to Scientific Notation, the Metric System, and Temperature; the Atom; the Periodic Table; Chemical Equations; Solutions; Chemical Reactions; Oxidation-Reduction Reactions; Acids and Bases; Nuclear Chemistry; and Biochemistry.

Scientific Notation, the Metric System, and Temperature

This subsection will require that you demonstrate your knowledge of scientific notation, metric prefixes and basic units of measurement, SI units of measurement, and temperature. Below are a couple sample questions:

1. Use scientific notation to shorten 0.00002509
2. Metric units of measurement include:
3. 1. 1. Meters, liters, and grams
      2. Feet, ounces, and pounds
      3. Meters, ounces, and grams

The first answer is: 2.509 x 10-5. You can arrive at this answer by simplifying and using exponents. The second answer is: a. Meters, liters, and grams.

The Atom

This subsection consists of questions related to the structure of the atom, including nuclei, electrons, protons, atomic radius, ions, electron clouds, and other related terms and concepts. For example:

1. 1. The number of protons in the nucleus of an atom determines:
      1. The number of negatively charged electrons that orbit the nucleus of an ion
      2. The atomic number of an element
      3. It determines the mass number of the atom

The correct answer is: b. The atomic number of an element.

The Periodic Table

This subsection consists of questions related to element grouping on the periodic table, as well as atomic weight, atomic radii, electronegativity, electron affinity, and other related terms and concepts. For example:

1. 1. Standard atomic weight differs from atomic mass and refers to:
      1. The ratio of an element’s average mass of atoms to 1/12 of the mass of a carbon-12 atom
      2. The ratio of a carbon-12 atom to an atom’s relative mass based on its most stable isotope
      3. The average mass of atoms in an element less the mass of a carbon-12 atom

The correct answer is: a. The ratio of an element’s average mass of atoms to 1/12 of the mass of a carbon-12 atom.

Hesi A2 Chemistry Practice Test

Chemical Equations

This subsection consists of questions related to chemical equations, including reactants, products, coefficients, as well as balanced and unbalanced equations, along with other related terms and concepts. For example:

1. An unbalanced equation
   1. Follows the law of conservation of mass, thereby the coefficients on each side will be equal
   2. Does not follow the law of conservation of mass, which means the coefficients on each side will not be equal
2. Means the coefficients are whole numbers and must be made fractional

The correct answer is: b. Does not follow the law of conservation of mass, which means the coefficients on each side will not be equal. The equation needs to be balanced by multiplying the coefficients by a constant so as to produce a small whole number.

Solutions

This subsection contains questions related to percent concentrations, molarity, Avogadro’s number, common solutions and their properties, polar and nonpolar solvents, solutes, the effects of pressure and temperature on solubility, along with other related terms and concepts. For example:

1. 1. Hydrophilic molecules…
      1. Repel water and do not readily combine with it
      2. Attract water and readily combine with it
      3. Are nonpolar and usually part of the noble gasses

The correct answer is: b. Attract water and readily combine with it. The suffix philic gives you a hint that these molecules “like” water. The opposite is hydrophobic; phobic indicating that the molecules are not attracted to water.

Chemical Reactions

The questions in this subsection cover the rates and catalysts of chemical reactions, as well as the effects of temperature on reaction rate, combination and decomposition reactions, single versus double substitution reactions, and covalent and ionic bonding, among other related terms and concepts. For example:

1. The Maxwell-Boltzmann distribution refers to:
   1. The combination reaction of two or more reactants to form a single product
   2. The rate of decomposition
   3. The fuels and oxidants necessary for the process of combustion
   4. A plot or graph illustrating the energy and/or speed of gas molecules or particles in a system

The correct answer to the first question is: d. A plot of graph illustrating the energy and/or speed of gas molecules or particles in a system.

Oxidation-Reduction Reactions

This subsection contains questions related to metathesis reactions, reducing and oxidizing agents, single replacement reactions, as well as oxidation state and number, among other related concepts and terms. For example:

1. Single replacement reactions are:
   1. Oxidation/reduction reactions in which electrons are transferred from one species of chemical to another
   2. Oxidation/reduction reactions in which oxidation state is increased through loss of electrons
   3. Oxidation/reduction reactions in which electrons are split between bonds

The correct answer is: a. Oxidation/reduction reactions in which electrons are transferred from one species of chemical to another.

Acids and Bases

This subsection contains questions related to strong and weak acids and bases, superacids, superbases, and potential of hydrogen (pH), among other related concepts and terms. For example:

1. 1. Superacids are:
      1. Stronger than hydrogen in pH balance
      2. Stronger than 100% sulfuric acid
      3. Stronger than magic and perchloric acids
      4. Stronger than hydrochloric and hydrobromic acids

The correct answer is: b. Stronger than 100% sulfuric acid. These acids include perchloric, magic, and fluoroantimonic acids.

Nuclear Chemistry

This subsection contains questions related to nuclear force, radioactive half-life, isotopes, radioisotopes, radioactivity, and radioactive decay, as well as alpha, beta, and gamma rays, among other related concepts and terms. For example:

1. ____ is a process that can cause the detachment of an electron from an atom
   1. Ionizing radiation
   2. Isotropic radiation
   3. Beta rays
   4. Gamma rays

The correct answer is: a. Ionizing radiation.

Biochemistry

This subsection consists of questions related to carbohydrates, including glycolysis, proton motive force, the Embden-Meyerhof pathway, proteins, condensation reaction, peptides, amino acids, lipids, and nucleic acids, among other related concepts and terms. For example:

1. 1. Amino acids include:
      1. Glutamine and asparagine
      2. Fatty acids and phospholipids
      3. Arginine, lysine, and histidine

The correct answer is: c. Arginine, lysine, and histidine.

HESI A2 Test Online Prep Course

If you want to be fully prepared, Mometrix offers a comprehensive online HESI A2 Prep Course. This course is designed to provide you with any and every resource you may need while studying.  The HESI A2 Course includes:

• 182 Lessons Covering all the Topics
• Over 2,650 HESI A2 Practice Questions
• 150+ Video Tutorials
• More than 300 Electronic Flashcards
• Money-back Guarantee
• Free Mobile Access
• and More!

The HESI A2 Prep Course is designed to help any learner get everything they need to prepare for their HESI A2 exam; click below to check it out.

Test Preparation

Now that you have a better understanding of the HESI A2 Chemistry Test, what happens next? Preparation! Make sure you do your best on the HESI A2 by using the most complete test preparation materials on the market. Mometrix Test Preparation has developed everything you need: the HESI A2 Secrets study guide and HESI A2 Practice Test, and the HESI A2 Flashcard Study System. The HESI A2 Secrets study guide was written by Mometrix’s standardized test researchers and includes real exam content in the HESI A2 Practice Test. Not only that, the HESI A2 Flashcard Study System includes even more HESI A2 Practice Test questions. Pass the HESI A2 on your first attempt by reviewing and assessing your knowledge and skills using the HESI A2 Secrets study guide, the HESI A2 Flashcard Study System, and the HESI A2 Practice Test.

Mometrix also offers a comprehensive HESI A2 Online Course. This course features the content of our study guide, practice tests, and flashcards in an easy to digest format. You can track your progress, watch over 60 instructional videos to break down complex ideas, and study from anywhere with our free iOS and Android apps. The HESI A2 Online Course is designed to be your one-stop shop for success on test day.

HESI A2 Test – Home