About HESI A2 Chemistry
The HESI A2 Chemistry exam is a part of the HESI Admission Assessment (A2) used by many nursing schools and healthcare programs. It assesses your foundational knowledge of chemical principles relevant to the healthcare field.
What to Expect on the HESI A2 Chemistry Exam:
- Content Covered: The exam focuses on core chemistry concepts that apply to healthcare, including:
- Measurement: Units, conversions (metric system, scientific notation)
- Matter: States of matter (solids, liquids, gases, plasma), properties of matter
- Atomic Structure: Atoms, elements, isotopes, periodic table organization
- Chemical Bonding: Ionic and covalent bonding, Lewis structures
- Chemical Reactions: Types of reactions (synthesis, decomposition, single replacement, double replacement), balancing equations
- Solutions: Acids, bases, pH, concentrations (molarity)
- Stoichiometry: Mole calculations, mass-to-mass conversions in chemical reactions
- Number of Questions: There are typically 25 multiple-choice questions on the A2 exam dedicated to Chemistry.
- Time Limit: The time limit for the Chemistry section varies depending on the institution administering the exam. Be sure to check with your school for specific details.
- Scoring: There is no official passing score for the HESI A2 exam itself. Schools set their own minimum score requirements for each section, including Chemistry.