Answers are given in Bold
 

     Question 1 The number of protons in a chloride ion, Cl^-, is
 
 

                                              16
                                              17
                                              18
                                              35
 
 

     Question 2      Which is the electron dot structure of magnesium?
 

                                            ^.Mg^.
 
 
 

     Question 3 What is the difference between a chlorine atom and a chloride anion?
 
 

                                              The chloride ion has lost a neutron.
                                              The chloride ion has lost an electron.
                                              The chloride ion has lost a proton.
                                              The chloride ion has gained an electron.
 
 

     Question 4 The number of electrons in a sulfide ion, S^2-, is
 
 

                                              16
                                             14
                                              18
                                              32
 
 

     Question 5What is the formula of ammonium nitrate?
 
 

                                              NH₄NO₃
                                              (NH₄)₂NO₃
                                              NH₄(NO₃)₂
                                              NH₄N
 
 

     Question 6  Which state of matter is characterized by having molecules far apart and moving
                                          randomly?
 
 

                                              gas
                                              liquid
                                              solid
                                              all of these
 
 

     Question 7   When magnesium reacts with chlorine, magnesium ions, Mg²⁺, and chloride
                                          ions, Cl-, are formed. In this reaction, magnesium atoms
 
 

                                              lose electrons
                                              gain electrons
                                              lose protons
                                              gain protons
 
 

     Question 8   From the periodic table, the number of valence electrons for most of the main
                                          group elements may be determined directly from the
 
 

                                              atomic number
                                              group number
                                              period number
                                              nucleon number
 
 

     Question 9       Which of the noble gases DOES NOT have an octet of electrons in its outer
                                          shell?
 
 

                                              He
                                              Ne
                                              Ar
                                              Kr
 
 

     Question 10       Which of the following ranks the three states of matter from most to least
                                          ordered?
 
 

                                              gas > liquid > solid
                                              gas > solid > liquid
                                              solid > gas > liquid
                                              solid > liquid > gas
 
 

     Question 11           What is the name of the compound with the formula CCl₄?
 
 

                                              carbon chloride
                                              carbon(IV) chloride
                                              chlorine carbonide
                                              carbon tetrachloride
 
 

     Question 12        With respect to chemical bonding, which particles play the most active role?
 
 

                                              protons
                                              neutrons
                                              valence electrons
                                              core electrons
 
 

     Question 13  A chloride ion, Cl^- has the same electron configuration as a
 
 

                                              sodium atom
                                              chlorine atom
                                              neon atom
                                              argon atom
 
 

     Question 14   A covalent bond is formed when a pair of electrons is
 
 

                                              transferred
                                              shared
                                              split
                                              destroyed
 
 

     Question 15   In a nonpolar covalent bond, electrons are
 
 

                                              shared equally
                                              shared unequally
                                              transferred
                                              uncharged
 
 

     Question 16 Sodium hydroxide is commonly known as lye. The formula of sodium hydroxide is
 
 

                                              NaOH
                                              Na₂OH
                                              Na(OH)₂
                                              SOH
 
 

     Question 17  The temperature at which a liquid becomes a gas is called the
 
 

                                              melting point
                                              boiling point
                                              condensation point
                                              decomposition point
 
 

     Question 18
                                          The shape of a methane molecule is best described as
 
 

                                              linear
                                              triangular
                                              bent
                                              tetrahedral
 
 

     Question 19 When sodium metal and bromine liquid react to form sodium bromide, which of
                                          the following is occurring?
 
 

                                              The sodium and the bromine both lose electrons.
                                              The sodium loses an electron and the bromine gains an electron.
                                              The sodium and the bromine both gain electrons.
                                              The sodium gains an electron and the bromine loses an electron.
 
 

     Question 20  If a substance is a liquid
 
 

                                              it has a definite volume and a definite shape.
                                              it has a definite shape but no definite volume.
                                              it has a definite volume but no definite shape.
                                              it is readily compressible.
 
 

     Question 21 Which of the following molecules is expected to be polar?
 
 

                                              Cl₂
                                              BF₃
                                              CCl₄
                                              PCl₃
 
 

     Question 22  In which one of the following is hydrogen bonding NOT a factor?
 
 

                                              H₂O
                                              NH₃
                                              CH₄
                                              CH₃OH
 
 

     Question 23  The shape of a water molecule is
 
 

                                              linear
                                              bent
                                              tetrahedral
                                              unknown
 
 

     Question 24    A fluoride ion is
 
 

                                              F⁺
                                              F₂⁺
                                              F^-
                                              F₂^-
 
 

     Question 25     Describe the types of bonds in carbon dioxide.
 
 

                                              Two single bonds
                                              Two single bonds and one double bond
                                              One single and one double bond
                                              Two double bonds
 
 

     Question 26   In reactions to form ionic compounds, metals generally
 
 

                                              lose electrons
                                              gain electrons
                                              become non-metals
                                              do not react
 
 

     Question 27  The common name of the compound with the formula NH₃ is
 
 

                                              ammonia
                                              vinegar
                                              methane
                                              alcohol
 
 

     Question 28   Hydrogen is a diatomic molecule, H₂. The bond holding the hydrogen atoms
                                          together is
 
 

                                              ionic
                                              nonpolar covalent
                                              polar covalent
                                              metallic
 
 

     Question 29    Hydrogen and sulfur react to form
 
 

                                              HS
                                              H₂S
                                              HS₂
                                              H₄S₂
 
 

     Question 30  Which substance has nonpolar covalent bonds?
 
 

                                              O₂
                                              NO₂
                                              NaCl
                                              CO
 
 

     Question 31   Which of the following is not a valid ionic formula?
 
 

                                              KBr
                                              CaO
                                              MgBr
                                              Al₂O₃
 
 

     Question 32   Ionic compounds have strong forces between particles. This means that
                                          generally ionic compounds are _____________ at room temperature.
 
 

                                              solids
                                              liquids
                                              gases
                                              covalently bonded
 
 

     Question 33
                                          The temperature at which a solid melts is the melting point of the solid. The
                                          melting point is an indication of the submicroscopic forces that hold the solid
                                          together. Water melts at 0C. Table sugar (sucrose) melts at 285C. Gallium,
                                          Ga, melts at 30C. Which one of the following ranks the submicroscopic forces
                                          in these solids from the strongest to the weakest?
 
 

                                              Ga > water > sucrose
                                              sucrose > Ga > water
                                              water > sucrose > Ga
                                              Ga > sucrose > water
 
 

     Question 34
                                          The inertness of the noble gases is due to
 
 

                                              the unique structure of their nuclei
                                              the special number of protons and neutrons
                                              the bonds they form with other elements
                                              the number and arrangement of their electrons
 
 

     Question 35 The number of electrons in a chloride ion, Cl^-, is
 
 

                                              16
                                              17
                                              18
                                              35
 
 

     Question 36Which pair of atoms would form an ionic bond?
 
 

                                              K and Na
                                              Mg and S
                                              Cl and Br
                                              O and O
 
 

     Question 37  The shape of the carbon dioxide molecule is
 
 

                                              pyramidal
                                              triangular
                                              tetrahedral
                                              linear
 
 

     Question 38 Magnesium reacts with oxygen to form
 
 

                                              MgO
                                              Mg₂O
                                              Mg₂O₂
                                              Mg₃O₂
 
 

     Question 39    How many nitrogen atoms are in the formula for magnesium nitride?
 
 

                                              1
                                              2
                                              3
                                              4
 
 

     Question 40 A sodium ion, Na⁺, has the same electron configuration as a(n)
 
 

                                              sodium atom
                                              chlorine atom
                                              neon atom
                                              argon atom
 
 

     Question 41 Which atom is least likely to form an ion?
 
 

                                              chlorine
                                              sodium
                                              carbon
                                              oxygen
 
 

     Question 42   Which term fits this definition? A measure of the tendency of an atom in a
                                          molecule to attract electrons to itself.
 
 

                                              ionization
                                              electronegativity
                                              polar
                                              nonbonding
 
 

     Question 43     In reactions to form ionic compounds, non-metals generally
 
 

                                              lose electrons
                                              gain electrons
                                              become metals
                                              do not react
 
 

     Question 44     When a freshly cut piece of sodium metal, Na, is dropped into a flask with
                                          chlorine gas a violent reaction takes place creating a compound. This compound
 
 

                                              has properties that are more like Na than Cl
                                              has properties that are totally unlike either Na or Cl
                                              has properties that more like Cl than Na
                                              has properties that are like both Cl and Na
 
 

     Question 45     Which of the following would you expect to dissolve in benzene? Benzene is a
                                          nonpolar solvent.
 
 

                                              KCl
                                              H₂O
                                              CO₂
                                              NH₃
 
 

     Question 46    Which substance has polar covalent bonds?
 
 

                                              SO₂
                                              N₂
                                              Cl₂
                                              CaO