HESI A2 Chemistry practice covers atomic structure, chemical bonding, and basic reactions relevant to pharmacology and physiology.
An atom (or group of atoms) with an electrical charge is called a(n):
Which of the following correctly describes the oxidation state of the sulfur atom in sulfuric acid (H2SO4)?
Which of the states of matter have a definite volume?
What is the function of the coefficients in a chemical reaction?
What is the union of two amino acids using a peptide bond called?
An experiment is performed to measure the boiling point of water at sea level (actual boiling point is 100°C). The measured values are 104.6°C, 104.5°C, and 104.4°C. What term best describes this data?
What are dispersion forces (also called London dispersion forces or van der Waals forces)?
Lemon juice contains citric acid. Which of the following pH values would lemon juice most likely have?
What is the correct name for the chemical compound MgSO₄?
What are dipole-dipole forces?
A solution contains 120.9132 g of MgO dissolved in 3 L of solution. Given the atomic weights Mg = 24.305 g/mol and O = 15.9994 g/mol, how many moles of MgO are present?
Percent concentration of a solution is expressed as which of the following?
Once you're comfortable with chemistry, try a full HESI A2 practice test to see how it holds up under timed, mixed-section conditions, or head back to all HESI A2 categories.