Question 1

The carbon tetrachloride molecule, CCl4, has the shape of a

Accepted Answer

A)   tetrahedron.
B)   square.
C)   cube.
D)   circle.
E)   sphere.

Question 2

The strongest interactions between molecules of ammonia ( NH3 )  are

Accepted Answer

A)   ionic bonds.
B)   hydrogen bonds.
C)   polar covalent.
D)   dipole-dipole.
E)   dispersion forces.

Question 3

In an electron-dot structure of an element, the dots are used to represent

Accepted Answer

A)   all of the electrons in the atom.
B)   the valence electrons.
C)   the electron arrangement.
D)   only the electrons that will participate in bond formation.
E)   the electrons that the element will gain when it forms a compound.

Question 4

To form an ion, a sodium atom

Accepted Answer

A)   gains one electron.
B)   gains two electrons.
C)   loses seven electrons.
D)   loses one electron.
E)   loses two electrons.

Question 5

Match the chemical name with the correct formula.
-magnesium hydrogen sulfate

Accepted Answer

A)  MgSO₄
B)  Mg(HSO₄) ₂
C)  MgS
D)  MgSO₃
E)  Mg(HSO₃) ₂

Question 6

The number of valence electrons found in an atom of a Group A element is equal to

Accepted Answer

A)   its atomic number.
B)   its mass number.
C)   its group number.
D)   eight.
E)   eight minus the group number.

Question 7

The shape of the ammonia molecule (NH3)  is

Accepted Answer

A)   linear.
B)   square.
C)   pyramidal.
D)   hexagonal.
E)   octagonal.

Question 8

The strongest interactions between molecules of hydrogen ( H₂ )  are

Accepted Answer

A)   ionic bonds.
B)   hydrogen bonds.
C)   polar covalent.
D)   dipole-dipole.
E)   dispersion forces.

Question 9

The correct name for the compound N₂O₃ is

Accepted Answer

A)   nitrogen oxide.
B)   nitrogen trioxide.
C)   dinitride trioxide.
D)   dinitrogen oxide.
E)   dinitrogen trioxide.

Question 10

The compound MgCl₂ is named

Accepted Answer

A)   magnesium chlorine.
B)   magnesium dichloride.
C)   magnesium (II)  chloride.
D)   magnesium chloride.
E)   dimagnesium chloride.

Question 11

Match the correct name of the polyatomic ions with the formulas given.
-HCO₃-

Accepted Answer

A)   sulfate
B)   nitrate
C)   hydrogen carbonate
D)   hydroxide
E)   nitriteF)  oxideG)  phosphateH)  carbonateI)  hydrogen sulfiteJ)  carboniteK)  sulfiteL)  hydrogen sulfateM)  phosphate. C

Question 12

Match the correct name of the polyatomic ions with the formulas given.
-Cl

Accepted Answer

A)  1-
B)  0
C)  2-
D)  3+
E)  2+F) 1+

Question 13

The number of electrons in an ion with 20 protons and an ionic charge of 2+ is

Accepted Answer

A)   24.
B)   22.
C)   20.
D)   18.
E)   16. D

Question 14

The main interactions between molecules of iodine I2 are examples of

Accepted Answer

A)   ionic bonds.
B)   covalent bonds.
C)   hydrogen bonds.
D)   dipole-dipole interactions.
E)   dispersion forces.

Question 15

What is the symbol for the ion with 19 protons and 18 electrons?

Accepted Answer

A)   F+
B)   F-
C)   Ar+
D)   K-
E)   K+

Question 16

Indicate the type of bonding you would expect between the following elements.
-F and F

Accepted Answer

A)  nonpolar covalent
B)  ionic
C)  none
D)  polar covalent A

Question 17

Match the correct name of the polyatomic ions with the formulas given.
-CO₃2-

Accepted Answer

A)   sulfate
B)   nitrate
C)   hydrogen carbonate
D)   hydroxide
E)   nitriteF)  oxideG)  phosphateH)  carbonateI)  hydrogen sulfiteJ)  carboniteK)  sulfiteL)  hydrogen sulfateM)  phosphate.

Question 18

Ionic bonding is expected in which of these compounds?

Accepted Answer

A)   Cl₂
B)   KF
C)   OF2
D)   HF
E)   H₂

Question 19

The ability of an atom to attract the shared electrons in a covalent bond is its

Accepted Answer

A)   electronegativity.
B)   bonding ability.
C)   polarity.
D)   ionic character.
E)   nonpolarity.

Question 20

Indicate the type of bonding you would expect between the following elements.
-K

Accepted Answer

A)   1-
B)   0
C)   2-
D)   3+
E)   2+F)  1+

Exam 5: Compounds and Their Bonds

The carbon tetrachloride molecule, CCl4, has the shape of a

Correct AnswerverifiedShow Answer

The strongest interactions between molecules of ammonia ( NH3 ) are

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In an electron-dot structure of an element, the dots are used to represent

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To form an ion, a sodium atom

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Match the chemical name with the correct formula. -magnesium hydrogen sulfate

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The number of valence electrons found in an atom of a Group A element is equal to

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The shape of the ammonia molecule (NH3) is

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The strongest interactions between molecules of hydrogen ( H₂ ) are

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The correct name for the compound N₂O₃ is

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The compound MgCl₂ is named

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Match the correct name of the polyatomic ions with the formulas given. -HCO₃-

Correct AnswerverifiedC

Match the correct name of the polyatomic ions with the formulas given. -Cl

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The number of electrons in an ion with 20 protons and an ionic charge of 2+ is

Correct AnswerverifiedD

The main interactions between molecules of iodine I2 are examples of

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What is the symbol for the ion with 19 protons and 18 electrons?

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Indicate the type of bonding you would expect between the following elements. -F and F

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Match the correct name of the polyatomic ions with the formulas given. -CO₃2-

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Ionic bonding is expected in which of these compounds?

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The ability of an atom to attract the shared electrons in a covalent bond is its

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Indicate the type of bonding you would expect between the following elements. -K

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The carbon tetrachloride molecule, CCl₄, has the shape of a

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The strongest interactions between molecules of ammonia ( NH₃ ) are

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The shape of the ammonia molecule (NH₃) is

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C

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The number of electrons in an ion with 20 protons and an ionic charge of 2⁺ is

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D

The main interactions between molecules of iodine I₂ are examples of

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A

Match the correct name of the polyatomic ions with the formulas given. -CO₃^2-

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