Question 1

Match each term to its corresponding descriptive phrase.
-Bond formed between atoms when they share electrons

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 2

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 3

Oxygen has eight electrons, but only six of them are in its outermost energy level.

Accepted Answer

A) True 
 B)False

Question 4

Match each term to its corresponding descriptive phrase.
-Subatomic particle with a positive 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 5

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 6

Electrolytes are characterized by having either a positive or a negative charge.

Accepted Answer

A) True 
 B)False

Question 7

A solution containing the same number of H⁺ ions and OH- ions would have a pH of zero.

Accepted Answer

A) True 
 B)False

Question 8

Ions gain or lose electrons to try to attain four pairs of electrons in their outermost energy level.

Accepted Answer

A) True 
 B)False

Question 9

A solution with a pH of 3 has 100 times more hydrogen ions than a solution with a pH of 5.

Accepted Answer

A) True 
 B)False

Question 10

The atomic mass of an atom is equal to the number of protons plus the number of neutrons.

Accepted Answer

A) True 
 B)False

Question 11

The number of protons in the nucleus of an atom determines its atomic mass.

Accepted Answer

A) True 
 B)False

Question 12

Match each term to its corresponding descriptive phrase.
-Indicates an atom will react until it has eight electrons in its outermost energy level

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 13

The "aliveness" of a living organism depends on the mixture of elements of which it is made.

Accepted Answer

A) True 
 B)False

Question 14

Explain why the properties of water are important in the functioning of the body.

Accepted Answer

The properties of water are important in

Question 15

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 16

Acids release protons in solution.

Accepted Answer

A) True 
 B)False

Question 17

Which type of radiation consists of an electron that is released by the nucleus of an atom?

Accepted Answer

A)  Alpha 
B)  Beta 
C)  Delta 
D)  Gamma 
A)  Alpha 
B)  Beta 
C)  Delta 
D)  Gamma

Question 18

In a formula for a chemical reaction, the substances on the right of the arrow are referred to as products.

Accepted Answer

A) True 
 B)False

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

Radiation results from the breaking apart of the nucleus of an atom.

Accepted Answer

A) True 
 B)False

Exam 3: Chemical Basis of Life

Match each term to its corresponding descriptive phrase. -Bond formed between atoms when they share electrons

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

Oxygen has eight electrons, but only six of them are in its outermost energy level.

Match each term to its corresponding descriptive phrase. -Subatomic particle with a positive charge

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

Electrolytes are characterized by having either a positive or a negative charge.

A solution containing the same number of H⁺ ions and OH- ions would have a pH of zero.

Ions gain or lose electrons to try to attain four pairs of electrons in their outermost energy level.

A solution with a pH of 3 has 100 times more hydrogen ions than a solution with a pH of 5.

The atomic mass of an atom is equal to the number of protons plus the number of neutrons.

The number of protons in the nucleus of an atom determines its atomic mass.

Match each term to its corresponding descriptive phrase. -Indicates an atom will react until it has eight electrons in its outermost energy level

The "aliveness" of a living organism depends on the mixture of elements of which it is made.

Explain why the properties of water are important in the functioning of the body.

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

Acids release protons in solution.

Which type of radiation consists of an electron that is released by the nucleus of an atom?

In a formula for a chemical reaction, the substances on the right of the arrow are referred to as products.

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

Radiation results from the breaking apart of the nucleus of an atom.

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 and Development

Genetics and Heredity

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