Questions:
1. Normal body temperature is considered 6. Which of the following is represented by
to be 98.6°F. What is the normal body the atomic number of an element?
temperature in degrees Celsius?
a. An element’s number of neutrons
a. 37° C
b. An element’s number of protons
b. 100° C
c. An element’s number of protons and
c. 32° F neutrons
d. 21° C d. An element’s number of protons, neutrons,
and electrons
2. The mass of a grain of sand is 1.672 × 10-4 kg.
Express this number in standard notation.
7. Which of the following describes the phase
transition from ice into steam?
a. 1,672 kg
b. 0.00001672 kg a. Freezing
c. 1,672,000 kg b. Melting
d. 0.0001672 kg c. Evaporation
d. Sublimation
3. Which of the following is the SI unit used to
measure the amount of a substance?
8. Which of the following pH values is acidic?
a. Gram
a. 5
b. Mole
b. 11
c. Kilogram
c. 13
d. Meter
d. 7
4. What is the name given to a negatively
9. Which of the following describes a single
charged atom?
covalent bond?
a. Isotope
a. A bond that shares one electron pair
b. Ion
b. A bond that shares a single proton
c. Anion
c. A bond that shares no electron pairs
d. Cation
d. A bond that shares two electron pairs
5. Which of the following correctly defines the
10. Which of the following describes a catalyst?
term isotope?
a. A substance that increases the rate of a
a. Atoms that have different numbers of
chemical reaction
neutrons, electrons, and protons.
b. A substance that slows down a reaction
b. Atoms with the same number of protons
and electrons but a different number of c. A solid that precipitates out of a reaction
neutrons. d. A gas that evolves from the reaction
c. Atoms that have the same number of
protons and neutrons but a different
number of electrons.
d. Atoms with the same number of neutrons
and electrons but a different number of
protons.
HESI® A2 Chemistry Practice Test 193
, 11. What type of bonding exists in NaCl? 16. How many total amino acids are needed for
the human body to produce all the proteins
a. Isotopic it needs?
b. Stoic
a. 9
c. Synthetic
b. 11
d. Ionic
c. 10
d. 20
12. Which of the following represents the
general form of a decomposition reaction?
17. What is the oxidation number of oxygen?
a. A + O2 → H2O + CO2
a. 1+
b. AB + C → AC + B
b. 1–
c. AB → A + B
c. 2–
d. AB + CD → AD + BC
18. Which of the following correctly represents
13. What is the percent concentration of
the general chemical formula of a
benzene in a solution containing 59 mL
carbohydrate?
of benzene and 150 mL of toluene?
a. (CH2O)n
a. 56.4%
b. C6H12O6
b. 28.2%
c. (CH4O)n
c. 39.3%
d. (CHO)n
d. 14.1%
19. Which of the following does the pH scale
14. In a redox reaction, oxidation is the _______
measure?
of electrons and reduction is the _______ of
electrons.
a. Acid concentration
a. gain, loss b. The concentration of hydroxide ions
b. gain, gain c. The concentration of hydrogen ions
c. loss, loss d. The strength of an acid
d. loss, gain
20. Which of the following is emitted during
beta decay?
15. Which of the following is unlikely to have a
dipole?
a. Nucleus
a. Nonpolar compound b. Neutron
b. Salt c. Electron
c. Polar compound d. Proton
d. Ionic compound
HESI® A2 Chemistry Practice Test 194
1. Normal body temperature is considered 6. Which of the following is represented by
to be 98.6°F. What is the normal body the atomic number of an element?
temperature in degrees Celsius?
a. An element’s number of neutrons
a. 37° C
b. An element’s number of protons
b. 100° C
c. An element’s number of protons and
c. 32° F neutrons
d. 21° C d. An element’s number of protons, neutrons,
and electrons
2. The mass of a grain of sand is 1.672 × 10-4 kg.
Express this number in standard notation.
7. Which of the following describes the phase
transition from ice into steam?
a. 1,672 kg
b. 0.00001672 kg a. Freezing
c. 1,672,000 kg b. Melting
d. 0.0001672 kg c. Evaporation
d. Sublimation
3. Which of the following is the SI unit used to
measure the amount of a substance?
8. Which of the following pH values is acidic?
a. Gram
a. 5
b. Mole
b. 11
c. Kilogram
c. 13
d. Meter
d. 7
4. What is the name given to a negatively
9. Which of the following describes a single
charged atom?
covalent bond?
a. Isotope
a. A bond that shares one electron pair
b. Ion
b. A bond that shares a single proton
c. Anion
c. A bond that shares no electron pairs
d. Cation
d. A bond that shares two electron pairs
5. Which of the following correctly defines the
10. Which of the following describes a catalyst?
term isotope?
a. A substance that increases the rate of a
a. Atoms that have different numbers of
chemical reaction
neutrons, electrons, and protons.
b. A substance that slows down a reaction
b. Atoms with the same number of protons
and electrons but a different number of c. A solid that precipitates out of a reaction
neutrons. d. A gas that evolves from the reaction
c. Atoms that have the same number of
protons and neutrons but a different
number of electrons.
d. Atoms with the same number of neutrons
and electrons but a different number of
protons.
HESI® A2 Chemistry Practice Test 193
, 11. What type of bonding exists in NaCl? 16. How many total amino acids are needed for
the human body to produce all the proteins
a. Isotopic it needs?
b. Stoic
a. 9
c. Synthetic
b. 11
d. Ionic
c. 10
d. 20
12. Which of the following represents the
general form of a decomposition reaction?
17. What is the oxidation number of oxygen?
a. A + O2 → H2O + CO2
a. 1+
b. AB + C → AC + B
b. 1–
c. AB → A + B
c. 2–
d. AB + CD → AD + BC
18. Which of the following correctly represents
13. What is the percent concentration of
the general chemical formula of a
benzene in a solution containing 59 mL
carbohydrate?
of benzene and 150 mL of toluene?
a. (CH2O)n
a. 56.4%
b. C6H12O6
b. 28.2%
c. (CH4O)n
c. 39.3%
d. (CHO)n
d. 14.1%
19. Which of the following does the pH scale
14. In a redox reaction, oxidation is the _______
measure?
of electrons and reduction is the _______ of
electrons.
a. Acid concentration
a. gain, loss b. The concentration of hydroxide ions
b. gain, gain c. The concentration of hydrogen ions
c. loss, loss d. The strength of an acid
d. loss, gain
20. Which of the following is emitted during
beta decay?
15. Which of the following is unlikely to have a
dipole?
a. Nucleus
a. Nonpolar compound b. Neutron
b. Salt c. Electron
c. Polar compound d. Proton
d. Ionic compound
HESI® A2 Chemistry Practice Test 194
