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HESI A2 Chemistry practice test

2026-2027 exam practice page

6 practice questions

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Elsevier
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6 questions / 120 min
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HESI A2 Chemistry

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Question 1 Identify the parts of an atom

Question 1: Identify the parts of an atom

Which subatomic particle carries a negative electrical charge?

Question 2 Determine atomic number and mass

Question 2: Determine atomic number and mass

An atom has 11 protons and 12 neutrons. What is the mass number of this atom?

Question 3 Identify types of chemical bonds

Question 3: Identify types of chemical bonds

A chemical bond forms when one atom transfers electrons to another atom, creating oppositely charged ions. What type of bond is this?

Question 4 Apply the pH scale

Question 4: Apply the pH scale

A solution has a pH of 3. How should this solution be classified?

Question 5 Identify states of matter

Question 5: Identify states of matter

Which state of matter has a definite volume but takes the shape of its container?

Question 6 Balance a chemical equation

Question 6: Balance a chemical equation

Consider the unbalanced equation for the formation of water from hydrogen and oxygen gas. When the equation is balanced, how many molecules of hydrogen gas react with one molecule of oxygen gas?

Question 7 Identify a chemical change

Question 7: Identify a chemical change

Which of the following is an example of a chemical change?

Question 8 Apply the concept of the periodic table

Question 8: Apply the concept of the periodic table

Elements in the same vertical column of the periodic table are called a group. What do elements in the same group generally share?

Question 9 Identify the components of a solution

Question 9: Identify the components of a solution

In a solution of salt dissolved in water, the salt is the solute. What is the water in this solution?

Question 10 Apply the concept of chemical reactions

Question 10: Apply the concept of chemical reactions

In a chemical reaction, the substances that are present before the reaction occurs are called the reactants. What are the substances produced by the reaction called?

Question 11 Identify properties of acids and bases

Question 11: Identify properties of acids and bases

Which of the following is a characteristic property of an acid?

Question 12 Determine the number of electrons in a neutral atom

Question 12: Determine the number of electrons in a neutral atom

A neutral atom has an atomic number of 8. How many electrons does this atom have?

Question 13 Identify the law of conservation of mass

Question 13: Identify the law of conservation of mass

According to the law of conservation of mass, what is true about the total mass in a chemical reaction?

Question 14 Identify a physical property of matter

Question 14: Identify a physical property of matter

Which of the following is a physical property of a substance?

Question 15 Apply the concept of isotopes

Question 15: Apply the concept of isotopes

Two atoms of the same element have the same number of protons but different numbers of neutrons. These atoms are best described as

Question 16 Calculate molar relationships

Question 16: Calculate molar relationships

If one mole of a substance contains a fixed number of particles, how many moles are present in a sample that contains twice that number of particles?

Question 17 Identify the role of a catalyst

Question 17: Identify the role of a catalyst

What is the primary role of a catalyst in a chemical reaction?

Question 18 Identify the structure of a compound

Question 18: Identify the structure of a compound

Table salt is made of sodium and chlorine combined in a fixed ratio. Table salt is best classified as

Question 19 Apply the concept of solution concentration

Question 19: Apply the concept of solution concentration

A solution is described as dilute. What does this indicate about the solution?

Question 20 Identify the products of a neutralization reaction

Question 20: Identify the products of a neutralization reaction

When an acid reacts with a base in a neutralization reaction, which products are typically formed?

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About this practice test

What this 2026-2027 HESI A2 Chemistry Practice Test covers

Purchase access to the current 6-question practice bank, with exam mode, study mode, answers and rationales. The free sample is separate. Purchase includes the current bank only.

Practice material can include variations on the same concept. It is not an official exam or a guarantee of a passing score. Confirm important facts against current authoritative sources.

Work through up to 100 Elsevier-style questions built around reading comprehension, math, science, anatomy and physiology, vocabulary, pacing, and answer elimination.
Use answer-by-answer rationales to understand why the best option wins and why close distractors fail.
Start with the free sample before paying, then unlock the full timed bank only if the practice style fits.
Review missed questions with memory-friendly explanations so the tested pattern is easier to recognize later.

Use this HESI A2 Chemistry Practice Test to practice realistic Elsevier questions with 20 free sample questions, timed full-bank review, answer explanations, and focused rationales for reading comprehension, math, science, anatomy and physiology, vocabulary, pacing, and answer elimination.

Built for nursing students and candidates searching for HESI A2 Chemistry Practice Test, HESI A2 Chemistry practice questions, or a clear HESI A2 Chemistry study guide before an upcoming exam date.

Focus areas include reading comprehension, math, science, anatomy and physiology, vocabulary, pacing, and answer elimination, along with realistic timing, careful review of why distractors are wrong, and practical explanations that help the tested pattern stick.

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What you will practice on this page

  • Work through up to 100 Elsevier-style questions built around reading comprehension, math, science, anatomy and physiology, vocabulary, pacing, and answer elimination.
  • Use answer-by-answer rationales to understand why the best option wins and why close distractors fail.
  • Start with the free sample before paying, then unlock the full timed bank only if the practice style fits.
  • Review missed questions with memory-friendly explanations so the tested pattern is easier to recognize later.

How to use this exam to study smarter

  1. Start with the free HESI A2 Chemistry sample as a diagnostic so you know whether content, timing, or question wording is the real problem.
  2. Review every missed question before moving on, especially the distractors that felt tempting under time pressure.
  3. Retake the full HESI A2 Chemistry practice test in timed mode and use the score report to choose the next weak area.

Frequently asked questions

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Purchase access to the current 6-question practice bank, with exam mode, study mode, answers and rationales. The free sample is separate. Purchase includes the current bank only.

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Is this an official exam or a passing-score guarantee?

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Question topic: Timed accuracy

HESI A2 Chemistry Review: Timed accuracy

August 14, 2026 2 min read

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Question topic: Documentation

HESI A2 Chemistry Review: Documentation

July 16, 2026 2 min read

Review documentation for this HESI A2 Chemistry question with the key prompt clue, correct-answer reasoning, distractor checks, and sources to verify next.

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