Deck 3: Chemical Bonds

Question 1

Aluminum and oxygen form a compound with the formula Al₂O₃. Oxygen and gallium (Ga) could from a compound with a formula unit containing two oxygen atoms and three gallium atoms.

Answer 1

False

Question 2

Based on the number of valence electrons, sulfur (S) would normally form 1 bonds.

Answer 2

False

Question 3

The compound represented below has the formula Na₂S.

Answer 3

True

Question 4

Chloride ion (Cl^-) is an anion because it has lost an electron.

Question 5

Metals gain electrons to become ions in ionic compounds.

Question 6

The name for the compound formed between Co³⁺ and O^2- is cobalt(II) oxide.

Question 7

The element Co (cobalt) satisfies the octet rule.

Question 8

Strontium forms an anion by losing two electrons.

Question 9

The compound represented below contains two single covalent bonds.

Question 10

Sodium loses an electron in forming an ion which gives the ion a +1 charge.

Question 11

In the following compound, phosphorus (P) would be at the center of the molecule. PBrClF

Question 12

The formula that corresponds to the IUPAC name dichlorine monoxide is Cl₂O.

Question 13

A possible bonding pattern for an element in Group 5A would be to form one single bond and one double bond.

Question 14

Potassium tends to form a cation (K⁺).

Question 15

Using normal bonding requirements for atoms, the following correctly shows the bonding in a compound with the formula C₂H₃N.

Question 16

Examine the following image showing a "subatomic" level diagram of two atoms forming a bond. The type of bond formed is a single covalent bond.

Question 17

The Lewis structure for Cl₂O could be written as:

Question 18

Phosphorus must gain three electrons to obey the octet rule.

Question 19

Based on electronegativity values, in the bond shown below, nitrogen will have the negative charge. H-N

Question 20

Sodium combines with oxygen to form Na₂O. The expected formula between lithium and tellurium would be Li₂Te.

Question 21

How many bonds does a carbon atom typically form?

A) 2
B) 4
C) 6
D) 8

Question 22

When we name a molecular binary compound which of the following is true?

A) The element that has more atoms in the molecule is named first.
B) The elements are named in alphabetical order.
C) The less electronegative element is named first.
D) The more electronegative element is named first.

Question 23

Neither O or F can from triple bonds.

Question 24

An ionic bond is associated with which of the following?

A) interactions between nuclei
B) equal sharing of electrons
C) unequal sharing of electrons
D) the transfer of electrons

Question 25

18.01 g of water (H₂O) and 36.46 g of HCl contain the same number of molecules.

Question 26

In order to satisfy the octet rule, an atom with the following electron arrangement can shell 1: 2 electrons shell 2: 8 electrons shell 3: 5 electrons

A) gain three electrons.
B) gain two electrons.
C) gain one electron.
D) lose three electrons.

Question 27

High electronegativities are associated with which type of elements?

A) metals
B) metalloids
C) noble gases
D) nonmetals

Question 28

Which of the following occurs when a sulfur atom is converted to S^2-?

A) The sulfur atom gains two electrons and loses two protons.
B) The sulfur atom gains two electrons.
C) The sulfur atom loses two electrons and two protons.
D) The sulfur atom loses two electrons.

Question 29

What is the correct IUPAC name for a compound with the formula N₂O₃?

A) nitrogen oxide
B) nitrogen trioxide
C) nitrogen ozide
D) dinitrogen trioxide

Question 30

How many electrons are associated with a double bond?

A) 1
B) 2
C) 4
D) 6

Question 31

In which of the following cases is a polar covalent bond formed?

A) when an electron is transferred from one atom to another
B) when the electrons of a bond are shared equally by the two atoms
C) when the electrons of a bond are shared unequally by the two atoms
D) when a metallic element forms a bond with a non-metallic element

Question 32

The following is a statement of the octet rule. Representative elements normally form compounds in which each atom
has eight electrons in its outermost shell.

Question 33

Which of the following is a correct electron dot formula for ICl?

A)
B)
C)
D)
E)
F)

Question 34

Which of the following is an acceptable way to represent dinitrogen monoxide?

A) N₂O
B) nitric oxide
C) NO₂
D) both a and b

Question 35

An element with the following Lewis structure would most likely form how many covalent bonds?

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

Question 36

Using most common charges, the ionic compound that forms between calcium (Ca) and sulfur (S) has the formula

A) Ca₂S
B) CaS
C) CaS₂
D) Ca₂S₃

Question 37

Calcium carbonate is used as a phosphate binder to treat someone with too much phosphate, known as hyperphosphatemia, as can be seen in renal/kidney failure. The formula for this compound is CaCO₃.

Question 38

Which of the following statements is generally true about electronegativity?

A) Electronegativity decreases as we move left to right and decreases as we move top to bottom.
B) Electronegativity decreases as we move left to right and increases as we move top to bottom.
C) Electronegativity increases as we move left to right and decreases as we move top to bottom.
D) Electronegativity increases as we move left to right and increases as we move top to bottom.

Question 39

When an ionic compound forms between aluminum (Al) and nitrogen (N) atoms,

A) nitrogen donates electrons to aluminum.
B) nitrogen attains a positive charge and aluminum a negative charge.
C) aluminum donates electrons to nitrogen.
D) both a and b

Question 40

Which of the following occurs when an ionic bond is formed?

A) Electrons are transferred from the more electronegative element to the less electronegative element.
B) Electrons are transferred from the less electronegative element to the more electronegative element.
C) Electrons are shared equally.
D) Electrons are shared unequally.

Question 41

The correct formula of an ionic compound containing Fe²⁺ and ClO is

A) FeClO₄
B) Fe₂(ClO₄)₃
C) Fe(ClO₄)₂
D) Fe₃(ClO₄)₂

Question 42

An ion of phosphorus has a -3 charge. Which of the following is true?

A) It is a cation.
B) It contains more protons than electrons.
C) It contains 18 electrons.
D) It contains 12 protons.

Question 43

How many bonding electron pairs are represented in the following Lewis structure?

A) 2
B) 4
C) 8
D) 12

Question 44

What is the formula for a compound named calcium nitride?

A) CaN
B) Ca₃N₂
C) Ca₂N₃
D) Ca₃N

Question 45

What is the mass of 1.00 mol of sulfur trioxide?

A) 48.06 g
B) 80.06 g
C) 32.06 g
D) 112.18 g

Question 46

What is the name of the species formed when a bromine atom gains an electron?

A) bromate
B) bromide ion
C) bromine
D) bromine ion

Question 47

What is the formula for the compound named as tetraphosphorus decoxide? Assume "deca" represents 10.

A) P₄O₁₀
B) P₂O₅
C) P₁₀O₄
D) PO₄

Question 48

The following represents the formation of bond between atoms A and X. Based on this diagram which element is more electronegative?

A) A
B) X
C) A and X have the same electronegativity.

Question 49

What is the correct name for BaI₂?

A) barium iodine
B) barium iodide
C) barium diiodide
D) monobarium diiodide

Question 50

What type of particles can atoms gain or lose when they become ions?

A) protons
B) neutrons
C) electrons
D) It depends on the atom involved.

Question 51

What is the correct IUPAC name for the following compound? SBr₂

A) sulfur dibromide
B) sulfur(II) bromide
C) monosulfur dibromide
D) sulfur bromide

Question 52

The correct name for K₂SO₄ is

A) potassium sulfate.
B) potassium sulfide.
C) potassium sulfite.
D) potassium tetrasulfoxygen.

Question 53

The tin compound used to strengthen teeth has the formula SnF₂. Which of the following is the correct IUPAC name for this compound?

A) tin difluoride
B) monotin difluoride
C) tin fluoride
D) tin(II) fluoride

Question 54

Which is most likely true for an atom with one valence electron?

A) It will gain one electron.
B) It will gain two electrons.
C) It will lose one electron.
D) It will lose two electrons.

Question 55

Which of the following has the highest electronegativity?

A) O
B) N
C) Si
D) P

Question 56

The anion in an ionic compound whose name ends in "-ide" is

A) always a monoatomic ion.
B) always a polyatomic ion.
C) either a monoatomic or polyatomic ion.
D) positively charged.

Question 57

Consider the molecule shown below. ClCFBrI Which element in this molecule is the central atom?

A) Cl
B) C
C) F
D) Br
E) I

Question 58

Which of the following elements could form more than one compound with bromine (Br)?

A) Fe
B) Cs
C) Li
D) Al

Question 59

Which of the following metals would not use a Roman numeral as part of its name in a compound?

A) Cr
B) Mn
C) Co
D) Ca

Question 60

Which of the following pairs of elements is most likely to form a covalent bond?

A) Fe and H
B) Cs and Br
C) Cl and O
D) Zn and S

Question 61

Which Period 3 element has the weakest attaction for electrons? Enter the chemical symbol in the blank. ________

Question 62

Draw the Lewis structure for the following using lines to represent bonding electron pairs. SiF₄

Question 63

Completion
Phosgene is a compound used as a building block of some pharmaceuticals. It contains two chlorine atoms, one oxygen atom, and one carbon atom. Complete the following statement using the appropriate chemical symbol for the elements.
Based on electronegativity values, the _________________________atom in phosgene would have a positive charge.

Question 64

oxygen
The following is the Lewis structure for the compound commonly known as acetylene Fill in the blanks with the appropriate integer including zero if necessary (0, 1, 2, 3, etc.).
There are____________________single bonds in acetlyene.

Question 65

Aluminum (Al) and sulfur (S) combine to form an ionic compound. Fill in the blank with the symbol for the appropriate element.
In the formation of this ionic compound, the _____________________atom attains a -2 charge.

Question 66

Enter an integer number (1, 2, 3, ...) in the blank. How many electrons are in shell 2 of a N^3- ion?
____________________electrons

Question 67

oxygen
The following is the Lewis structure for the compound commonly known as acetylene Fill in the blanks with the appropriate integer including zero if necessary (0, 1, 2, 3, etc.).
Acetylene contains_____________________nonbonding electrons.

Question 68

Which atom will be positively charged (if any) in the following bond? Enter the symbol for the element or none as appropriate in the blank. P-P ________

Question 69

Completion
Phosgene is a compound used as a building block of some pharmaceuticals. It contains two chlorine atoms, one oxygen atom, and one carbon atom. Complete the following statement using the appropriate chemical symbol for the elements.
The central atom in phosgene is_____________________.

Question 70

Aluminum (Al) and sulfur (S) combine to form an ionic compound. Fill in the blank with the symbol for the appropriate element.
The formula for the ionic compound formed contains two_______________________ions and three ______________________ions.

Question 71

Draw the Lewis structure for the following using lines to represent bonding electron pairs. CS₂

Question 72

oxygen
The following is the Lewis structure for the compound commonly known as acetylene Fill in the blanks with the appropriate integer including zero if necessary (0, 1, 2, 3, etc.).
__________________atoms in acetylene obey the octet rule.

Question 73

Completion
Phosgene is a compound used as a building block of some pharmaceuticals. It contains two chlorine atoms, one oxygen atom, and one carbon atom. Complete the following statement using the appropriate chemical symbol for the elements.
In the Lewis structure for phosgene, the _____________________atom has four nonbonding electrons.

Question 74

Completion
Phosgene is a compound used as a building block of some pharmaceuticals. It contains two chlorine atoms, one oxygen atom, and one carbon atom. Complete the following statement using the appropriate chemical symbol for the elements.
In the Lewis structure for phosgene, two electrons are shared between the___________________ atom and the ____________________atom.

Question 75

Which Group 5A element has the strongest attraction for electrons? Enter the chemical symbol in the blank. ________

Question 76

N^3- and O^2- have the same number of _____________________.

Question 77

Completion
Phosgene is a compound used as a building block of some pharmaceuticals. It contains two chlorine atoms, one oxygen atom, and one carbon atom. Complete the following statement using the appropriate chemical symbol for the elements.
In the Lewis structure for phosgene, there is a double bond between_____________________and ____________________.

Question 78

How many moles of oxygen are in 1.00 mol of carbon monoxide?

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

Question 79

Redraw the following Lewis structure using lines to represent bonding electron pairs.

Question 80

Aluminum (Al) and sulfur (S) combine to form an ionic compound. Fill in the blank with the symbol for the appropriate element.
In the formation of this compound _____________________gains electrons and __________________loses electrons.