Question 1

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)  nitrite
F) oxide
G) phosphate
H) carbonate
I) hydrogen sulfite
J) carbonite
K) sulfite
L) hydrogen sulfate
M) phosphate. 
A)  sulfate 
B)  nitrate 
C)  hydrogen carbonate 
D)  hydroxide 
E)  nitrite
F) oxide
G) phosphate
H) carbonate
I) hydrogen sulfite
J) carbonite
K) sulfite
L) hydrogen sulfate
M) phosphate. C

Question 2

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

Question 3

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

Question 4

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. 
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 5

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

Question 6

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

Question 7

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

Question 8

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

Question 9

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

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

Question 11

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

Question 12

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

Accepted Answer

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

Question 13

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

Question 14

Ionic bonding is expected in which of these compounds?

Accepted Answer

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

Question 15

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

Question 16

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

Question 17

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

Question 18

The shape of the ammonia molecule (NH3) is

Accepted Answer

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

Question 19

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)  nitrite
F) oxide
G) phosphate
H) carbonate
I) hydrogen sulfite
J) carbonite
K) sulfite
L) hydrogen sulfate
M) phosphate. 
A)  sulfate 
B)  nitrate 
C)  hydrogen carbonate 
D)  hydroxide 
E)  nitrite
F) oxide
G) phosphate
H) carbonate
I) hydrogen sulfite
J) carbonite
K) sulfite
L) hydrogen sulfate
M) phosphate.

Question 20

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

Exam 5: Compounds and Their Bonds

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

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

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

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

The strongest interactions between molecules of hydrogen ( H₂ ) are

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

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

The strongest interactions between molecules of ammonia ( NH3 ) are

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

The compound MgCl₂ is named

To form an ion, a sodium atom

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

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

Ionic bonding is expected in which of these compounds?

The correct name for the compound N₂O₃ is

The main interactions between molecules of iodine I2 are examples of

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

The shape of the ammonia molecule (NH3) is

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

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

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Filters

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

The strongest interactions between molecules of ammonia ( NH₃ ) are

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

The main interactions between molecules of iodine I₂ are examples of

The shape of the ammonia molecule (NH₃) is

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