Question 1

An anion is

Accepted Answer

A) an element that has lost protons. 
B) an element that has gained protons. 
C) an element that has lost electrons. 
D) an element that have gained electrons. 
A) an element that has lost protons. 
B) an element that has gained protons. 
C) an element that has lost electrons. 
D) an element that have gained electrons.

Question 2

A chloride ion,Cl⁻ has the same electron configuration as a(n)

Accepted Answer

A) sodium atom. 
B) chlorine atom. 
C) neon atom. 
D) argon atom. 
A) sodium atom. 
B) chlorine atom. 
C) neon atom. 
D) argon atom.

Question 3

How many iron atoms are in the formula for iron(III)oxide?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 4

The formula for the compound calcium bromide is

Accepted Answer

A) CaBr. 
B) Ca₂Br. 
C) CaBr₂. 
D) Ca₃Br₂. 
A) CaBr. 
B) Ca₂Br. 
C) CaBr₂. 
D) Ca₃Br₂.

Question 5

The Cl⁻ ion and the K⁺ ion are isoelectronic.

Accepted Answer

A) True 
 B)False

Question 6

In a nonpolar covalent bond,electrons are

Accepted Answer

A) shared equally. 
B) shared unequally. 
C) transferred. 
D) uncharged. 
A) shared equally. 
B) shared unequally. 
C) transferred. 
D) uncharged.

Question 7

The prefix which means seven is

Accepted Answer

A) hexa. 
B) hepta. 
C) octa. 
D) tetra. 
A) hexa. 
B) hepta. 
C) octa. 
D) tetra.

Question 8

Which substance has ionic bonds?

Accepted Answer

A) K₂S 
B) SO₃ 
C) CI₄ 
D) N₂ 
A) K₂S 
B) SO₃ 
C) CI₄ 
D) N₂

Question 9

An ionic bond is formed when electrons are

Accepted Answer

A) transferred. 
B) shared. 
C) split. 
D) destroyed. 
A) transferred. 
B) shared. 
C) split. 
D) destroyed.

Question 10

Which is the electron dot structure of nitrogen?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 11

The inertness of the noble gases is due to

Accepted Answer

A) the outermost shell has six electrons. 
B) the number of protons and neutrons. 
C) the bonds they form with other elements. 
D) the outermost shell has an octet of electrons, except for helium which has two electrons. 
A) the outermost shell has six electrons. 
B) the number of protons and neutrons. 
C) the bonds they form with other elements. 
D) the outermost shell has an octet of electrons, except for helium which has two electrons.

Question 12

Hydrogen and sulfur react to form

Accepted Answer

A) HS. 
B) H₂S. 
C) HS₂. 
D) H₄S₂. 
A) HS. 
B) H₂S. 
C) HS₂. 
D) H₄S₂.

Question 13

Acetylene is used in high temperature metal cutting torches.The formula of acetylene is C₂H₂.The structure of acetylene is

Accepted Answer

A) H-C-C-H. 
B) H-C   C-H. 
C) H-C   C-H. 
D) C-H   H-C. 
A) H-C-C-H. 
B) H-C   C-H. 
C) H-C   C-H. 
D) C-H   H-C.

Question 14

When calcium reacts with iodine,calcium ions,Ca²⁺,and iodide ions,I⁻,are formed.In this reaction,calcium atoms

Accepted Answer

A) lose electrons. 
B) gain electrons. 
C) lose protons. 
D) gain protons. 
A) lose electrons. 
B) gain electrons. 
C) lose protons. 
D) gain protons.

Question 15

A molecule that has a partial positive charge on one end and a partial negative charge on the other end is a

Accepted Answer

A) dipole. 
B) nonpolar molecule. 
C) linear molecule. 
D) binary molecule. 
A) dipole. 
B) nonpolar molecule. 
C) linear molecule. 
D) binary molecule.

Question 16

A covalent bond is formed when a pair of electrons is

Accepted Answer

A) transferred. 
B) shared. 
C) split. 
D) destroyed. 
A) transferred. 
B) shared. 
C) split. 
D) destroyed.

Question 17

What is the name of NaH₂PO₄?

Accepted Answer

A) sodium hydrogen phosphate 
B) sodium dihydrogen phosphate 
C) monosodium dihydrogen monophosphate 
D) sodium(II)dihydrogen monophosphate 
A) sodium hydrogen phosphate 
B) sodium dihydrogen phosphate 
C) monosodium dihydrogen monophosphate 
D) sodium(II)dihydrogen monophosphate

Question 18

Chalk is primarily composed of calcium carbonate.The formula of calcium carbonate is

Accepted Answer

A) CaCO₃. 
B) Ca₂CO₃. 
C) Ca(CO₃)₂. 
D) Ca₃(CO₃)₂. 
A) CaCO₃. 
B) Ca₂CO₃. 
C) Ca(CO₃)₂. 
D) Ca₃(CO₃)₂.

Question 19

KCl is a polyatomic ion.

Accepted Answer

A) True 
 B)False

Question 20

When two chlorine atoms combine with each other,the bond that forms is

Accepted Answer

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

Exam 4: Chemical Bonds

An anion is

A chloride ion,Cl⁻ has the same electron configuration as a(n)

How many iron atoms are in the formula for iron(III)oxide?

The formula for the compound calcium bromide is

The Cl⁻ ion and the K⁺ ion are isoelectronic.

In a nonpolar covalent bond,electrons are

The prefix which means seven is

Which substance has ionic bonds?

An ionic bond is formed when electrons are

Which is the electron dot structure of nitrogen?

The inertness of the noble gases is due to

Hydrogen and sulfur react to form

Acetylene is used in high temperature metal cutting torches.The formula of acetylene is C₂H₂.The structure of acetylene is

When calcium reacts with iodine,calcium ions,Ca²⁺,and iodide ions,I⁻,are formed.In this reaction,calcium atoms

A molecule that has a partial positive charge on one end and a partial negative charge on the other end is a

A covalent bond is formed when a pair of electrons is

What is the name of NaH₂PO₄?

Chalk is primarily composed of calcium carbonate.The formula of calcium carbonate is

KCl is a polyatomic ion.

When two chlorine atoms combine with each other,the bond that forms is

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