Question 1

In reactions to form ionic compounds,metals generally

Accepted Answer

A) lose electrons. 
B) gain electrons. 
C) become non-metals. 
D) do not react. 
A) lose electrons. 
B) gain electrons. 
C) become non-metals. 
D) do not react.

Question 2

The shape of the sulfur dioxide molecule,where sulfur is the central atom is

Accepted Answer

A) linear. 
B) bent. 
C) trigonal planar. 
D) tetrahedral. 
A) linear. 
B) bent. 
C) trigonal planar. 
D) tetrahedral.

Question 3

When magnesium combines with bromine,the bond formed is best classified as

Accepted Answer

A) ionic. 
B) polar covalent 
C) metallic. 
D) nonpolar covalent. 
A) ionic. 
B) polar covalent 
C) metallic. 
D) nonpolar covalent.

Question 4

The nature of bonding forces in matter influences which of the following observable properties of the matter?

Accepted Answer

A) the optical property 
B) the state of the matter at room temperature 
C) the strength and rigidity 
D) all of the above 
A) the optical property 
B) the state of the matter at room temperature 
C) the strength and rigidity 
D) all of the above

Question 5

Sodium chloride has properties that are very similar to those of sodium.

Accepted Answer

A) True 
 B)False

Question 6

Why do chemists use the Lewis symbols to represent chlorine and sodium rather than drawing the electron diagrams of each element before and after the reaction?

Accepted Answer

A) Lewis symbols are easier to use. 
B) Lewis symbols are more scientific. 
C) Lewis symbols are more accurate. 
D) Lewis symbols are more abstract. 
A) Lewis symbols are easier to use. 
B) Lewis symbols are more scientific. 
C) Lewis symbols are more accurate. 
D) Lewis symbols are more abstract.

Question 7

The structure of formaldehyde,CH₂O,has

Accepted Answer

A) all ionic bonds. 
B) all single covalent bonds. 
C) a double covalent bond between carbon and oxygen. 
D) a triple covalent bond between carbon and oxygen. 
A) all ionic bonds. 
B) all single covalent bonds. 
C) a double covalent bond between carbon and oxygen. 
D) a triple covalent bond between carbon and oxygen.

Question 8

Water is the common name for which molecule?

Accepted Answer

A) H₂O 
B) HO₂ 
C) HO 
D) H₂O₂ 
A) H₂O 
B) HO₂ 
C) HO 
D) H₂O₂

Question 9

When ions arrange themselves in an orderly structure,that structure is known as a

Accepted Answer

A) crystal. 
B) dipole. 
C) molecule. 
D) tetrahedron. 
A) crystal. 
B) dipole. 
C) molecule. 
D) tetrahedron.

Question 10

The anion formed when nitrogen gains three electrons is called the

Accepted Answer

A) nitride ion. 
B) nitrite ion. 
C) nitrogide ion. 
D) nitro ion. 
A) nitride ion. 
B) nitrite ion. 
C) nitrogide ion. 
D) nitro ion.

Question 11

Which of the following compounds is NOT polar?

Accepted Answer

A) CBr₄ 
B) CH₂F₂ 
C) NF₃ 
D) NH₂I 
A) CBr₄ 
B) CH₂F₂ 
C) NF₃ 
D) NH₂I

Question 12

For which atom is it difficult to predict the most probable ionic charge using the periodic table?

Accepted Answer

A) Co 
B) K 
C) Al 
D) Br 
A) Co 
B) K 
C) Al 
D) Br

Question 13

The formula of iron(II)phosphate is

Accepted Answer

A) FePO₄. 
B) Fe₂PO₄. 
C) Fe₂(PO₄)₃. 
D) Fe₃(PO₄)₂. 
A) FePO₄. 
B) Fe₂PO₄. 
C) Fe₂(PO₄)₃. 
D) Fe₃(PO₄)₂.

Question 14

The noble gases are inert.This means they

Accepted Answer

A) undergo very few chemical reactions. 
B) exist as gases at room temperature. 
C) undergo many chemical reactions. 
D) lose and gain electrons easily. 
A) undergo very few chemical reactions. 
B) exist as gases at room temperature. 
C) undergo many chemical reactions. 
D) lose and gain electrons easily.

Question 15

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

Accepted Answer

A) NaOH. 
B) Na₂OH. 
C) Na(OH)₂. 
D) SOH. 
A) NaOH. 
B) Na₂OH. 
C) Na(OH)₂. 
D) SOH.

Question 16

Mg²⁺ has the same electronic structure as

Accepted Answer

A) Ne. 
B) Mg. 
C) 
C)  
D) Ar. 
A) Ne. 
B) Mg. 
C) 
C)  
D) Ar.

Question 17

The number of electrons in a sodium ion,Na⁺,is

Accepted Answer

A) 10. 
B) 11. 
C) 12. 
D) 23. 
A) 10. 
B) 11. 
C) 12. 
D) 23.

Question 18

In reactions to form ionic compounds,nonmetals generally

Accepted Answer

A) lose electrons. 
B) gain electrons. 
C) become metals. 
D) do not react. 
A) lose electrons. 
B) gain electrons. 
C) become metals. 
D) do not react.

Question 19

An oxide ion is

Accepted Answer

A) O⁺. 
B) O²⁺. 
C) O⁻. 
D) O²⁻. 
A) O⁺. 
B) O²⁺. 
C) O⁻. 
D) O²⁻.

Question 20

When calcium reacts with chlorine,the reaction involves a

Accepted Answer

A) transfer of electrons from Ca to Cl. 
B) transfer of electrons from Cl to Ca. 
C) sharing of electrons between Ca and Cl. 
D) creation of electrons. 
A) transfer of electrons from Ca to Cl. 
B) transfer of electrons from Cl to Ca. 
C) sharing of electrons between Ca and Cl. 
D) creation of electrons.

Exam 4: Chemical Bonds

In reactions to form ionic compounds,metals generally

The shape of the sulfur dioxide molecule,where sulfur is the central atom is

When magnesium combines with bromine,the bond formed is best classified as

The nature of bonding forces in matter influences which of the following observable properties of the matter?

Sodium chloride has properties that are very similar to those of sodium.

Why do chemists use the Lewis symbols to represent chlorine and sodium rather than drawing the electron diagrams of each element before and after the reaction?

The structure of formaldehyde,CH₂O,has

Water is the common name for which molecule?

When ions arrange themselves in an orderly structure,that structure is known as a

The anion formed when nitrogen gains three electrons is called the

Which of the following compounds is NOT polar?

For which atom is it difficult to predict the most probable ionic charge using the periodic table?

The formula of iron(II)phosphate is

The noble gases are inert.This means they

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

Mg²⁺ has the same electronic structure as

The number of electrons in a sodium ion,Na⁺,is

In reactions to form ionic compounds,nonmetals generally

An oxide ion is

When calcium reacts with chlorine,the reaction involves a

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