Question 1

Which of the following would be considered a base substance?

Accepted Answer

A)  lemon juice 
B)  household ammonia 
C)  stomach contents 
D)  black coffee 
A)  lemon juice 
B)  household ammonia 
C)  stomach contents 
D)  black coffee B

Question 2

Which of the following element groups make up 96% of the body's weight?

Accepted Answer

A)  oxygen, carbon, hydrogen, and nitrogen 
B)  oxygen, carbon, calcium, and sodium 
C)  oxygen, carbon, hydrogen, and sodium 
D)  oxygen, nitrogen, potassium, and iron 
A)  oxygen, carbon, hydrogen, and nitrogen 
B)  oxygen, carbon, calcium, and sodium 
C)  oxygen, carbon, hydrogen, and sodium 
D)  oxygen, nitrogen, potassium, and iron A

Question 3

Which of the following substances is most abundant in the human body?

Accepted Answer

A)  oxygen 
B)  water 
C)  sodium 
D)  carbon dioxide 
A)  oxygen 
B)  water 
C)  sodium 
D)  carbon dioxide B

Question 4

Chemistry is the study of _____.

Accepted Answer

A)  chemicals 
B)  biological functions 
C)  matter 
D)  chemical reactions 
A)  chemicals 
B)  biological functions 
C)  matter 
D)  chemical reactions

Question 5

When two or more atoms bond, they form a(n) ________.

Accepted Answer

A)  ion 
B)  electrolyte 
C)  neutron 
D)  molecule 
A)  ion 
B)  electrolyte 
C)  neutron 
D)  molecule

Question 6

An element is composed of atoms that:

Accepted Answer

A)  have the same number of positive charges in their nuclei. 
B)  have a greater number of positive than negative charges in their nuclei. 
C)  have a lesser number of positive than negative charges in their nuclei. 
D)  have no positive charges in their nuclei. 
A)  have the same number of positive charges in their nuclei. 
B)  have a greater number of positive than negative charges in their nuclei. 
C)  have a lesser number of positive than negative charges in their nuclei. 
D)  have no positive charges in their nuclei.

Question 7

Which of the following atoms always forms covalent bonds?

Accepted Answer

A)  carbon 
B)  oxygen 
C)  nitrogen 
D)  carbohydrate 
A)  carbon 
B)  oxygen 
C)  nitrogen 
D)  carbohydrate

Question 8

Which of the following statements are true?

Accepted Answer

A)  Cations are negatively charged ions, and anions are positively charged ions. 
B)  The transfer of electrons is responsible for the formation of ions (cations and anions). 
C)  The atomic number refers to the number of electrons within the atom. 
D)  Chemical bonds are formed when chemical compounds bond with each other. 
A)  Cations are negatively charged ions, and anions are positively charged ions. 
B)  The transfer of electrons is responsible for the formation of ions (cations and anions). 
C)  The atomic number refers to the number of electrons within the atom. 
D)  Chemical bonds are formed when chemical compounds bond with each other.

Question 9

What causes an ionic bond?

Accepted Answer

A)  the transfer of energy from one nucleus to another nucleus 
B)  polarity 
C)  the transfer of electrons between atoms 
D)  the sharing of electrons by the outer shells of the atoms 
A)  the transfer of energy from one nucleus to another nucleus 
B)  polarity 
C)  the transfer of electrons between atoms 
D)  the sharing of electrons by the outer shells of the atoms

Question 10

Which three subatomic structures comprise an atom?

Accepted Answer

A)  protons, electrons, and matter 
B)  protons, neutrons, and electrons 
C)  ions, neutrons, and electrons 
D)  protons, ions, and the nucleus 
A)  protons, electrons, and matter 
B)  protons, neutrons, and electrons 
C)  ions, neutrons, and electrons 
D)  protons, ions, and the nucleus

Which of the following would be considered a base substance?

Which of the following element groups make up 96% of the body's weight?

Which of the following substances is most abundant in the human body?

Chemistry is the study of _____.

When two or more atoms bond, they form a(n) ________.

An element is composed of atoms that:

Which of the following atoms always forms covalent bonds?

Which of the following statements are true?

What causes an ionic bond?

Which three subatomic structures comprise an atom?

Introduction to the Human Body

Cells

Cell Metabolism

Microbiology Basics

Ttissues 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

Filters

Exam 2: Basic Chemistry

Which of the following would be considered a base substance?

Which of the following element groups make up 96% of the body's weight?

Which of the following substances is most abundant in the human body?

Chemistry is the study of _____.

When two or more atoms bond, they form a(n) ________.

An element is composed of atoms that:

Which of the following atoms always forms covalent bonds?

Which of the following statements are true?

What causes an ionic bond?

Which three subatomic structures comprise an atom?

Introduction to the Human Body

Cells

Cell Metabolism

Microbiology Basics

Ttissues 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

Filters