Question 1

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

Accepted Answer

A)  HCl 
B)  CaCO3 
C)  HCO-3 
D)  KCl 
A)  HCl 
B)  CaCO3 
C)  HCO-3 
D)  KCl

Question 2

The sharing of electrons is referred to as

Accepted Answer

A)  covalent bonding. 
B)  ionic bonding. 
C)  radioactive decay. 
D)  isotope formation. 
A)  covalent bonding. 
B)  ionic bonding. 
C)  radioactive decay. 
D)  isotope formation.

Question 3

A solution that has a pH of 6.8

Accepted Answer

A)  has a neutral pH. 
B)  is alkaline. 
C)  is basic. 
D)  is acidic. 
A)  has a neutral pH. 
B)  is alkaline. 
C)  is basic. 
D)  is acidic.

Question 4

Which of the following is true of an anion?

Accepted Answer

A)  An anion always ionizes to form electrolytes. 
B)  An anion always has an atomic weight of 15. 
C)  An anion carries a negative charge. 
D)  Hydrogen ion is an anion. 
A)  An anion always ionizes to form electrolytes. 
B)  An anion always has an atomic weight of 15. 
C)  An anion carries a negative charge. 
D)  Hydrogen ion is an anion.

Question 5

Zinc,selenium,cobalt,and iodine are all

Accepted Answer

A)  trace elements. 
B)  compounds. 
C)  radioactive. 
D)  isotopes of hydrogen. 
A)  trace elements. 
B)  compounds. 
C)  radioactive. 
D)  isotopes of hydrogen.

Question 6

This ion has 8 protons in the nucleus and 9 electrons in its orbits.It is therefore a(n)

Accepted Answer

A)  cation. 
B)  electrolyte. 
C)  acid. 
D)  anion. 
A)  cation. 
B)  electrolyte. 
C)  acid. 
D)  anion.

Question 7

Which of the following can neutralize H⁺?

Accepted Answer

A)  Ca2+ 
B)  Na⁺ 
C)  OH- 
D)  H2O 
A)  Ca2+ 
B)  Na⁺ 
C)  OH- 
D)  H2O

Question 8

Which of the following is described by: one atom of oxygen bonds covalently with two atoms of hydrogen?

Accepted Answer

A)  carbon dioxide 
B)  a tincture 
C)  water 
D)  neutralization of an acid with a base 
A)  carbon dioxide 
B)  a tincture 
C)  water 
D)  neutralization of an acid with a base

Question 9

A combination of sugar granules and iron filings is best described as a

Accepted Answer

A)  mixture. 
B)  colloidal suspension. 
C)  tincture. 
D)  isotope. 
A)  mixture. 
B)  colloidal suspension. 
C)  tincture. 
D)  isotope.

Question 10

What is the energy-transferring molecule?

Accepted Answer

A)  H⁺ 
B)  ATP 
C)  Ca2+ 
D)  NaCl 
A)  H⁺ 
B)  ATP 
C)  Ca2+ 
D)  NaCl

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

In which of the following is the number of hydrogen ions greater?

Accepted Answer

A)  an alkaline solution 
B)  a basic solution 
C)  blood 
D)  urine 
A)  an alkaline solution 
B)  a basic solution 
C)  blood 
D)  urine

Question 13

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 14

An atom has 1 proton,0 neutrons,and 1 electron.What will convert this atom to a cation?

Accepted Answer

A)  add 1 neutron 
B)  add 1 proton 
C)  lose 1 electron 
D)  add 1 proton,2 neutrons,and eliminate 1 electron 
A)  add 1 neutron 
B)  add 1 proton 
C)  lose 1 electron 
D)  add 1 proton,2 neutrons,and eliminate 1 electron

Question 15

Which process refers to the dissociation of NaCl into Na⁺ and Cl-?

Accepted Answer

A)  radioactivity 
B)  ionization 
C)  covalent bonding 
D)  hydrogen bonding 
A)  radioactivity 
B)  ionization 
C)  covalent bonding 
D)  hydrogen bonding

Question 16

Which element must be present for a substance to be classified as organic?

Accepted Answer

A)  iodine 
B)  iron 
C)  carbon 
D)  calcium 
A)  iodine 
B)  iron 
C)  carbon 
D)  calcium

Question 17

Which of the following is an anion?

Accepted Answer

A)  NaCl 
B)  KCl 
C)  H2SO4 
D)  HCO-3 
A)  NaCl 
B)  KCl 
C)  H2SO4 
D)  HCO-3

Question 18

Which of the following acts as a catalyst?

Accepted Answer

A)  an acid 
B)  an enzyme 
C)  a buffer 
D)  ATP 
A)  an acid 
B)  an enzyme 
C)  a buffer 
D)  ATP

Question 19

Which of the following illustrates antacid activity?

Accepted Answer

A)  NaCl --> Na⁺ + Cl⁻ 
B)  HCl --> H⁺ + Cl⁻ 
C)  Mg(OH)₂ + HCl --> MgCl₂ + H₂O 
D)  KCl ---> K⁺ + Cl⁻ 
A)  NaCl --> Na⁺ + Cl⁻ 
B)  HCl --> H⁺ + Cl⁻ 
C)  Mg(OH)₂ + HCl --> MgCl₂ + H₂O 
D)  KCl ---> K⁺ + Cl⁻

Question 20

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

Exam 2: Basic Chemistry

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

The sharing of electrons is referred to as

A solution that has a pH of 6.8

Which of the following is true of an anion?

Zinc,selenium,cobalt,and iodine are all

This ion has 8 protons in the nucleus and 9 electrons in its orbits.It is therefore a(n)

Which of the following can neutralize H⁺?

Which of the following is described by: one atom of oxygen bonds covalently with two atoms of hydrogen?

A combination of sugar granules and iron filings is best described as a

What is the energy-transferring molecule?

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

In which of the following is the number of hydrogen ions greater?

Which of the following carries no net electrical charge?

An atom has 1 proton,0 neutrons,and 1 electron.What will convert this atom to a cation?

Which process refers to the dissociation of NaCl into Na⁺ and Cl-?

Which element must be present for a substance to be classified as organic?

Which of the following is an anion?

Which of the following acts as a catalyst?

Which of the following illustrates antacid activity?

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

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

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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