Question 1

If a certain reversible reaction was at equilibrium, what would happen to this equilibrium if more reactants were added?

Accepted Answer

A) The reaction would heat up. 
B) Nothing since the reaction is in equilibrium. 
C) The position of the equilibrium would shift to form more reactants. 
D) The equilibrium would shift to form more products. 
A) The reaction would heat up. 
B) Nothing since the reaction is in equilibrium. 
C) The position of the equilibrium would shift to form more reactants. 
D) The equilibrium would shift to form more products.

Question 2

Which of the following elements is a non-metal?

Accepted Answer

A) Lead 
B) Zinc 
C) Chlorine 
D) Lithium 
A) Lead 
B) Zinc 
C) Chlorine 
D) Lithium

Question 3

When methane (CH4) is heated in the presence of oxygen, water and CO2 are produced. What type of reaction is this?

Accepted Answer

A) Combustion 
B) Decomposition 
C) Double replacement 
D) Synthesis 
A) Combustion 
B) Decomposition 
C) Double replacement 
D) Synthesis

Question 4

Which of the following Kelvin temperatures represents the freezing point of water?

Accepted Answer

A) 0 K 
B) 273.15 K 
C) 373.15 K 
D) -273.15 K 
A) 0 K 
B) 273.15 K 
C) 373.15 K 
D) -273.15 K

Question 5

Which of the following is an intramolecular force?

Accepted Answer

A) Dipole-dipole interactions 
B) Hydrogen bonding 
C) Covalent bonds 
D) Dispersion forces 
A) Dipole-dipole interactions 
B) Hydrogen bonding 
C) Covalent bonds 
D) Dispersion forces

Question 6

What atom property determines if a bond is polar or non-polar?

Accepted Answer

A) Ionization energy 
B) Polarity 
C) Electron affinity 
D) Electronegativity 
A) Ionization energy 
B) Polarity 
C) Electron affinity 
D) Electronegativity

Question 7

Which of the following has an ionic bond?

Accepted Answer

A) C6H12O6 
B) H2O2 
C) NaCl 
D) H2O 
A) C6H12O6 
B) H2O2 
C) NaCl 
D) H2O

Question 8

Which of the following represents the general form of a decomposition reaction?

Accepted Answer

A) AB + C → AC + B 
B) A + O2 → H2O + CO2 
C) AB → A + B 
D) AB + CD → AD + BC 
A) AB + C → AC + B 
B) A + O2 → H2O + CO2 
C) AB → A + B 
D) AB + CD → AD + BC

Question 9

Which of the following exists as a diatomic element?

Accepted Answer

A) Sodium 
B) Chlorine 
C) Xenon 
D) Helium 
A) Sodium 
B) Chlorine 
C) Xenon 
D) Helium

Question 10

An oxidizing agent does which of the following?

Accepted Answer

A) Is oxidized by the reducing agent 
B) Oxidizes another chemical 
C) Reduces another chemical 
D) Loses electrons 
A) Is oxidized by the reducing agent 
B) Oxidizes another chemical 
C) Reduces another chemical 
D) Loses electrons

Question 11

Which of the following correctly states Le Chatlier's principle?

Accepted Answer

A) When a system in equilibrium is disturbed, the system will adjust to counteract this disturbance. 
B) A system in equilibrium cannot be disturbed by an outside influence. 
C) As the amount of a catalyst is increased, the rate of a reaction will also increase. 
D) Changes to a system in equilibrium are indicated by a color change in the reaction. 
A) When a system in equilibrium is disturbed, the system will adjust to counteract this disturbance. 
B) A system in equilibrium cannot be disturbed by an outside influence. 
C) As the amount of a catalyst is increased, the rate of a reaction will also increase. 
D) Changes to a system in equilibrium are indicated by a color change in the reaction.

Question 12

In a redox reaction, oxidation is the _______ of electrons and reduction is the  _______ of electrons.

Accepted Answer

A) gain, gain 
B) gain, loss 
C) loss, gain 
D) loss, loss 
A) gain, gain 
B) gain, loss 
C) loss, gain 
D) loss, loss

Question 13

Which of the following is not an example of an alloy?

Accepted Answer

A) A mixture of iron and lead 
B) A mixture of copper and aluminum 
C) A mixture of silver and gold 
D) A mixture of bromine and oxygen 
A) A mixture of iron and lead 
B) A mixture of copper and aluminum 
C) A mixture of silver and gold 
D) A mixture of bromine and oxygen

Question 14

Which of the following is not a subatomic particle?

Accepted Answer

A) Neutron 
B) Ion 
C) Proton 
D) Electron 
A) Neutron 
B) Ion 
C) Proton 
D) Electron

Question 15

Which of the following is the metric system's basic measure of distance?

Accepted Answer

A) inch 
B) mile 
C) kilometer 
D) meter 
A) inch 
B) mile 
C) kilometer 
D) meter

Question 16

Which of the following subatomic particles are located in the nucleus?

Accepted Answer

A) Electrons and neutrons 
B) Protons and neutrons 
C) Positrons and electrons 
D) Protons, neutrons, and electrons 
A) Electrons and neutrons 
B) Protons and neutrons 
C) Positrons and electrons 
D) Protons, neutrons, and electrons

Question 17

During oxidation, what happens to a chemical species?

Accepted Answer

A) It loses one mole of oxygen 
B) It gains one mole of oxygen 
C) It loses electrons 
D) It gains electrons 
A) It loses one mole of oxygen 
B) It gains one mole of oxygen 
C) It loses electrons 
D) It gains electrons

Question 18

Which of the following represents a normal blood pH level?

Accepted Answer

A) 7.40 
B) 0 
C) 7.0 
D) 14 
A) 7.40 
B) 0 
C) 7.0 
D) 14

Question 19

Which of the following is correct?

Accepted Answer

A) 273.15 Kelvin = 100 degrees Celsius 
B) 100 Kelvin = 0 degrees Celsius 
C) 0 Kelvin = -273.15 degrees Celsius 
D) 0 kelvin = 32 degrees Celsius 
A) 273.15 Kelvin = 100 degrees Celsius 
B) 100 Kelvin = 0 degrees Celsius 
C) 0 Kelvin = -273.15 degrees Celsius 
D) 0 kelvin = 32 degrees Celsius

Question 20

When a chemist dips a piece of blue litmus paper into a solution, no color change is observed. Why?

Accepted Answer

A) The solution is acidic 
B) The solution is basic 
C) pH greater than 7 
D) The pH paper is too old 
A) The solution is acidic 
B) The solution is basic 
C) pH greater than 7 
D) The pH paper is too old

If a certain reversible reaction was at equilibrium, what would happen to this equilibrium if more reactants were added?

Which of the following elements is a non-metal?

When methane (CH₄) is heated in the presence of oxygen, water and CO₂ are produced. What type of reaction is this?

Which of the following Kelvin temperatures represents the freezing point of water?

Which of the following is an intramolecular force?

What atom property determines if a bond is polar or non-polar?

Which of the following has an ionic bond?

Which of the following represents the general form of a decomposition reaction?

Which of the following exists as a diatomic element?

An oxidizing agent does which of the following?

Which of the following correctly states Le Chatlier's principle?

In a redox reaction, oxidation is the _ of electrons and reduction is the _ of electrons.

Which of the following is not an example of an alloy?

Which of the following is not a subatomic particle?

Which of the following is the metric system's basic measure of distance?

Which of the following subatomic particles are located in the nucleus?

During oxidation, what happens to a chemical species?

Which of the following represents a normal blood pH level?

Which of the following is correct?

When a chemist dips a piece of blue litmus paper into a solution, no color change is observed. Why?

HESI-A2-Math

HESI-A2-Vocabulary

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HESI-A2-Anatomy & Physiology

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Exam 1: HESI-A2-Chemistry

If a certain reversible reaction was at equilibrium, what would happen to this equilibrium if more reactants were added?

Which of the following elements is a non-metal?

When methane (CH4) is heated in the presence of oxygen, water and CO2 are produced. What type of reaction is this?

Which of the following Kelvin temperatures represents the freezing point of water?

Which of the following is an intramolecular force?

What atom property determines if a bond is polar or non-polar?

Which of the following has an ionic bond?

Which of the following represents the general form of a decomposition reaction?

Which of the following exists as a diatomic element?

An oxidizing agent does which of the following?

Which of the following correctly states Le Chatlier's principle?

In a redox reaction, oxidation is the _______ of electrons and reduction is the _______ of electrons.

Which of the following is not an example of an alloy?

Which of the following is not a subatomic particle?

Which of the following is the metric system's basic measure of distance?

Which of the following subatomic particles are located in the nucleus?

During oxidation, what happens to a chemical species?

Which of the following represents a normal blood pH level?

Which of the following is correct?

When a chemist dips a piece of blue litmus paper into a solution, no color change is observed. Why?

HESI-A2-Math

HESI-A2-Vocabulary

HESI-A2-Reading

HESI-A2-Grammar

HESI-A2-Biology

HESI-A2-Physics

HESI-A2-Anatomy & Physiology

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When methane (CH₄) is heated in the presence of oxygen, water and CO₂ are produced. What type of reaction is this?

In a redox reaction, oxidation is the _ of electrons and reduction is the _ of electrons.