Question 1

Which of the following represents bicarbonate,an anion that is important in acid-base regulation?

Accepted Answer

A)  HCl 
B)  Ca(OH)2 
C)  HCO3- 
D)  KCl 
A)  HCl 
B)  Ca(OH)2 
C)  HCO3- 
D)  KCl

Question 2

Which of the following best describes a solution in which water is the solvent?

Accepted Answer

A)  Colloidal suspension 
B)  Aqueous solution 
C)  Tincture 
D)  Isotope 
A)  Colloidal suspension 
B)  Aqueous solution 
C)  Tincture 
D)  Isotope

Question 3

Which of the following is most descriptive of the nucleus of the atom?

Accepted Answer

A)  Contents determine the atomic number 
B)  Contents determine the atomic mass 
C)  "Home" of the protons 
D)  All of the above 
A)  Contents determine the atomic number 
B)  Contents determine the atomic mass 
C)  "Home" of the protons 
D)  All of the above

Question 4

Which of the following carries no net electrical charge?

Accepted Answer

A)  An anion 
B)  A cation 
C)  A polar molecule 
D)  An ion 
A)  An anion 
B)  A cation 
C)  A polar molecule 
D)  An ion

Question 5

Which of the following is an anion?

Accepted Answer

A)  Sodium ion 
B)  Potassium ion 
C)  Chloride ion 
D)  Calcium ion 
A)  Sodium ion 
B)  Potassium ion 
C)  Chloride ion 
D)  Calcium ion

Question 6

Which of the following is most descriptive of the function of an enzyme?

Accepted Answer

A)  Neutralization 
B)  Ionization 
C)  Catalyst 
D)  pH 
A)  Neutralization 
B)  Ionization 
C)  Catalyst 
D)  pH

Question 7

In the reaction HCl $\rightarrow$ H? + Cl-

Accepted Answer

A)  HCl ionizes, thereby yielding the cation (H+) and anion (Cl-). 
B)  hydrochloric acid dissociates into an anion and cation. 
C)  HCl dissociates into a hydrogen ion and chloride ion. 
D)  all of the above are true. 
A)  HCl ionizes, thereby yielding the cation (H+) and anion (Cl-). 
B)  hydrochloric acid dissociates into an anion and cation. 
C)  HCl dissociates into a hydrogen ion and chloride ion. 
D)  all of the above are true.

Question 8

An atom of oxygen has an atomic number of 8.Therefore

Accepted Answer

A)  it can share electrons with another identical atom. 
B)  it can share electrons with another oxygen atom. 
C)  it can form O2. 
D)  all of the above are true. 
A)  it can share electrons with another identical atom. 
B)  it can share electrons with another oxygen atom. 
C)  it can form O2. 
D)  all of the above are true.

Question 9

The heart pushes blood into the blood vessels as chemical energy is converted to which form of energy?

Accepted Answer

A)  Thermal 
B)  Radiant 
C)  Mechanical 
D)  Nuclear 
A)  Thermal 
B)  Radiant 
C)  Mechanical 
D)  Nuclear

Question 10

Which of the following is true of Na⁺?

Accepted Answer

A)  Called the sodium ion 
B)  Has fewer protons than electrons 
C)  Called an anion 
D)  Lowers pH 
A)  Called the sodium ion 
B)  Has fewer protons than electrons 
C)  Called an anion 
D)  Lowers pH

Question 11

An atom has 1 proton,0 neutrons,and 1 electron; its isotope has:

Accepted Answer

A)  2 electrons and 0 neutrons. 
B)  2 protons and 2 neutrons. 
C)  1 proton and 1 neutron. 
D)  2 protons and 0 neutrons. 
A)  2 electrons and 0 neutrons. 
B)  2 protons and 2 neutrons. 
C)  1 proton and 1 neutron. 
D)  2 protons and 0 neutrons.

Question 12

Which of the following is most descriptive of ionic and covalent?

Accepted Answer

A)  Types of bonding in which the electrons are shared 
B)  Types of bonding in which the electrons are swapped 
C)  Types of bonding 
D)  Types of bonding found only in reactions in which H+ is produced 
A)  Types of bonding in which the electrons are shared 
B)  Types of bonding in which the electrons are swapped 
C)  Types of bonding 
D)  Types of bonding found only in reactions in which H+ is produced

Question 13

Blood has a pH range of 7.35 to 7.45 and therefore

Accepted Answer

A)  is acidic. 
B)  is three to four times more viscous (thicker) than water. 
C)  has a pH that is similar to urine and stomach contents. 
D)  is alkaline. 
A)  is acidic. 
B)  is three to four times more viscous (thicker) than water. 
C)  has a pH that is similar to urine and stomach contents. 
D)  is alkaline.

Question 14

Which group is correct?

Accepted Answer

A)  Subatomic particles located within the nucleus: protons, neutrons, electrons 
B)  Common cations: Na+, K+, HCO3-, NH4+ 
C)  Common molecules: O2, N2, H2O 
D)  Bases: NaOH, Na HCO3-, HCl 
A)  Subatomic particles located within the nucleus: protons, neutrons, electrons 
B)  Common cations: Na+, K+, HCO3-, NH4+ 
C)  Common molecules: O2, N2, H2O 
D)  Bases: NaOH, Na HCO3-, HCl

Question 15

An atom that has 3 protons,4 neutrons,and 3 electrons

Accepted Answer

A)  has an atomic mass of 7. 
B)  is a cation. 
C)  has an atomic number of 4. 
D)  has an atomic number of 10. 
A)  has an atomic mass of 7. 
B)  is a cation. 
C)  has an atomic number of 4. 
D)  has an atomic number of 10.

Question 16

Which compound is the universal solvent?

Accepted Answer

A)  Carbon dioxide 
B)  Oxygen 
C)  ATP 
D)  Water 
A)  Carbon dioxide 
B)  Oxygen 
C)  ATP 
D)  Water

Question 17

[H⁺] refers to

Accepted Answer

A)  an isotope of hydrogen. 
B)  heavy hydrogen. 
C)  hydrogen bonding. 
D)  hydrogen ion concentration. 
A)  an isotope of hydrogen. 
B)  heavy hydrogen. 
C)  hydrogen bonding. 
D)  hydrogen ion concentration.

Question 18

Which group is correct?

Accepted Answer

A)  Blood pH 7.50, alkaline, turns litmus paper pink 
B)  Blood pH 7.2, acidosis, turns litmus paper pink 
C)  Blood pH 7.35, normal blood pH, turns litmus paper blue 
D)  More than one of the above are true. 
A)  Blood pH 7.50, alkaline, turns litmus paper pink 
B)  Blood pH 7.2, acidosis, turns litmus paper pink 
C)  Blood pH 7.35, normal blood pH, turns litmus paper blue 
D)  More than one of the above are true.

Question 19

Intestinal secretions are alkaline.What can decrease its pH?

Accepted Answer

A)  The addition of H+ in the form of HCl 
B)  Drinking baking soda (NaHCO3) 
C)  Neutralization of gastric (stomach) HCl 
D)  Drinking lots of water 
A)  The addition of H+ in the form of HCl 
B)  Drinking baking soda (NaHCO3) 
C)  Neutralization of gastric (stomach) HCl 
D)  Drinking lots of water

Question 20

Which of the following is most descriptive of HCl?

Accepted Answer

A)  Is called bicarbonate 
B)  Is an acid 
C)  Raises pH 
D)  Dissociates into Na+ and Cl- 
A)  Is called bicarbonate 
B)  Is an acid 
C)  Raises pH 
D)  Dissociates into Na+ and Cl-

Exam 2: Basic Chemistry

Which of the following represents bicarbonate,an anion that is important in acid-base regulation?

Which of the following best describes a solution in which water is the solvent?

Which of the following is most descriptive of the nucleus of the atom?

Which of the following carries no net electrical charge?

Which of the following is an anion?

Which of the following is most descriptive of the function of an enzyme?

In the reaction HCl →\rightarrow→ H? + Cl-

An atom of oxygen has an atomic number of 8.Therefore

The heart pushes blood into the blood vessels as chemical energy is converted to which form of energy?

Which of the following is true of Na⁺?

An atom has 1 proton,0 neutrons,and 1 electron; its isotope has:

Which of the following is most descriptive of ionic and covalent?

Blood has a pH range of 7.35 to 7.45 and therefore

Which group is correct?

An atom that has 3 protons,4 neutrons,and 3 electrons

Which compound is the universal solvent?

[H⁺] refers to

Which group is correct?

Intestinal secretions are alkaline.What can decrease its pH?

Which of the following is most descriptive of HCl?

Introduction to the Human Body

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Muscular System

Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

Sensory System

Endocrine System

Blood

Anatomy of the Heart

Function of the Heart

Anatomy of the Blood Vessels

Functions of the Blood Vessels

Lymphatic System

Immune System

Respiratory System

Digestive System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Human Development and Heredity

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In the reaction HCl $\rightarrow$ H? + Cl^-