Question 1

Acids:

Accepted Answer

A) are proton donors. 
B) taste sour. 
C) release hydrogen ions in an aqueous solution. 
D) All of the above are true of acids. 
A) are proton donors. 
B) taste sour. 
C) release hydrogen ions in an aqueous solution. 
D) All of the above are true of acids.

Question 2

Hydrogen bonds form as a result of the attraction between polar molecules.

Accepted Answer

A) True 
 B)False

Question 3

The reaction between hydrogen and oxygen needed to form water is an example of a:

Accepted Answer

A) hydrogen bond. 
B) synthesis reaction. 
C) decomposition reaction. 
D) None of the above is correct. 
A) hydrogen bond. 
B) synthesis reaction. 
C) decomposition reaction. 
D) None of the above is correct.

Question 4

An atom can be described as chemically inert if its outermost electron shell contains _____ electrons.

Accepted Answer

A) eight 
B) nine 
C) two 
D) Both A and C are correct. 
A) eight 
B) nine 
C) two 
D) Both A and C are correct.

Question 5

Electrolytes include acids, bases, and salts.

Accepted Answer

A) True 
 B)False

Question 6

Match each term to its corresponding descriptive phrase.
-Subatomic particle with no charge

Accepted Answer

A) Proton 
B) Neutron 
C) Electron 
D) Isotopes 
E) Ionic bonds
F)Covalent bonds
G)Octet rule
H)Atomic number
I)Atomic mass
J)Hydrogen bonds 
A) Proton 
B) Neutron 
C) Electron 
D) Isotopes 
E) Ionic bonds
F)Covalent bonds
G)Octet rule
H)Atomic number
I)Atomic mass
J)Hydrogen bonds

Question 7

As the concentration of hydrogen ions (H⁺) increases, the:

Accepted Answer

A) solution becomes more basic. 
B) solution becomes more acidic. 
C) pH rises. 
D) Both A and C are correct. 
A) solution becomes more basic. 
B) solution becomes more acidic. 
C) pH rises. 
D) Both A and C are correct.

Question 8

The most abundant and important compound(s) in the body is(are):

Accepted Answer

A) air. 
B) water. 
C) proteins. 
D) nucleic acids. 
A) air. 
B) water. 
C) proteins. 
D) nucleic acids.

Question 9

As the concentration of hydroxide ions (OH-) increases, the:

Accepted Answer

A) solution becomes more basic. 
B) solution becomes more acidic. 
C) pH rises. 
D) Both A and C are correct. 
A) solution becomes more basic. 
B) solution becomes more acidic. 
C) pH rises. 
D) Both A and C are correct.

Question 10

If an atom has an atomic number of 12 and an atomic mass of 25, it must have 13 neutrons.

Accepted Answer

A) True 
 B)False

Question 11

Chemistry can be defined as the science that deals with the structure, arrangement, and composition of substances and the reactions they undergo.

Accepted Answer

A) True 
 B)False

Question 12

Dalton named the atom after the Greek word for invisible.

Accepted Answer

A) True 
 B)False

Question 13

An isotope of an element contains the same number of neutrons but different numbers of protons.

Accepted Answer

A) True 
 B)False

Question 14

Tastes bitter

Accepted Answer

A)  Acid 
B)  Base 
A)  Acid 
B)  Base

Question 15

A molecule that is polar:

Accepted Answer

A) can form a hydrogen bond. 
B) must be ionic. 
C) has an unequal charge. 
D) is both A and C. 
A) can form a hydrogen bond. 
B) must be ionic. 
C) has an unequal charge. 
D) is both A and C.

Question 16

The octet rule refers to the:

Accepted Answer

A) stability of the nucleus when the protons are in a multiple of eight. 
B) stability of the atom when there are eight electrons in the outermost energy level. 
C) stable configuration of the nucleus when there are eight more neutrons than protons. 
D) principle that one atom can combine with a maximum of eight other atoms. 
A) stability of the nucleus when the protons are in a multiple of eight. 
B) stability of the atom when there are eight electrons in the outermost energy level. 
C) stable configuration of the nucleus when there are eight more neutrons than protons. 
D) principle that one atom can combine with a maximum of eight other atoms.

Question 17

An atom is chemically inert if its outermost shell has two pairs of electrons.

Accepted Answer

A) True 
 B)False

Question 18

A type of chemical reaction called hydrolysis is an example of an anabolic reaction.

Accepted Answer

A) True 
 B)False

Question 19

In the presence of a base, red litmus paper will:

Accepted Answer

A) stay red. 
B) turn blue. 
C) turn green. 
D) turn yellow. 
A) stay red. 
B) turn blue. 
C) turn green. 
D) turn yellow.

Question 20

Electrolytes are:

Accepted Answer

A) organic compounds. 
B) called cations if they have a negative charge. 
C) called cations if they have a positive charge. 
D) both A and B. 
A) organic compounds. 
B) called cations if they have a negative charge. 
C) called cations if they have a positive charge. 
D) both A and B.

Exam 3: Chemistry of Life

Acids:

Hydrogen bonds form as a result of the attraction between polar molecules.

The reaction between hydrogen and oxygen needed to form water is an example of a:

An atom can be described as chemically inert if its outermost electron shell contains _____ electrons.

Electrolytes include acids, bases, and salts.

Match each term to its corresponding descriptive phrase. -Subatomic particle with no charge

As the concentration of hydrogen ions (H⁺) increases, the:

The most abundant and important compound(s) in the body is(are):

As the concentration of hydroxide ions (OH-) increases, the:

If an atom has an atomic number of 12 and an atomic mass of 25, it must have 13 neutrons.

Chemistry can be defined as the science that deals with the structure, arrangement, and composition of substances and the reactions they undergo.

Dalton named the atom after the Greek word for invisible.

An isotope of an element contains the same number of neutrons but different numbers of protons.

Tastes bitter

A molecule that is polar:

The octet rule refers to the:

An atom is chemically inert if its outermost shell has two pairs of electrons.

A type of chemical reaction called hydrolysis is an example of an anabolic reaction.

In the presence of a base, red litmus paper will:

Electrolytes are:

Organization of the Body

Homeostasis

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

Tissue Types

Skin

Skeletal Tissues

Axial Skeleton

Appendicular Skeleton

Articulations

Axial Muscles

Appendicular Muscles

Muscle Contraction

Nervous System Cells

Nerve Signaling

Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

General Senses

Special Senses

Endocrine Regulation

Endocrine Glands

Blood

Heart

Blood Vessels

Circulation of the Blood

Lymphatic System

Innate Immunity

Adaptive Immunity

Stress

Respiratory Tract

Ventilation

Gas Exchange Transport

Upper Digestive Tract

Lower Digestive Tract

Digestion and Absorption

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Male Reproductive System

Female Reproductive System

Growth, Development, and Aging

Genetics and Heredity

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