Covalent (Molecular) Compounds lesson

Covalent (Molecular) Compounds lesson

Multiple Choice

What part of an atom is involved in chemical bonding?

• protons
• neutrons
• electrons
• nucleus

Multiple Choice

Electrons in the outermost energy level are called

• outer electrons

• valence electrons

• negatives

• super electrons

Multiple Choice

Why do atoms share electrons?

• To attain the electron configuration of a noble gas.
• To become ions and take a charge
• to increase the mass
• it's a nice thing to do.

Multiple Choice

Where are the non-metals located on the periodic table?

• All over

• On the left side of the "staircase"

• On the right side of the "staircase"

Multiple Choice

Compounds made from only nonmetals are _________________ compounds.

• ionic

• covalent

• metallic

• chemical

Multiple Choice

Where are the metals located on the periodic table?

• All over

• On the left side of the "staircase"

• On the right side of the "staircase"

Multiple Choice

Compounds made from a combination of metals and nonmetals are _________________ compounds.

• ionic

• covalent

• metallic

• chemical

Multiple Choice

What two types of atoms make a covalent (molecular) bond?

• 2 Nonmetals

• 1 Nonmetal and 1 Metal

• 2 Metals

• 2 Noble Gases

Multiple Choice

How do covalent bonds form?

• Donating & receiving (transfer) valence e- between atoms.

• Opposite slight charges attract each other between compounds.

• Scientists are still not sure how they form.

• Sharing valence e- between atoms. (in a tug-of-war for the e-)

Multiple Choice

Which of the following is NOT covalently bonded? (Which one is Ionic?)

• K₂S

• H₂O

• I₂

• CO₂

Multiple Choice

Which of the following is Covalently bonded?

• N₂O₅

• Na₂O

• MgCl₂

• Li₃N

Multiple Choice

Which type of bonding occurs between Na and O in

Na₂O

• Covalent (Molecular)

• Ionic

• Metallic

• can not determin

Multiple Choice

Which type of bonding occurs between C and O in

CO₂

• Covalent (Molecular)

• Ionic

• Metallic

• can not determine

Multiple Choice

Which type of bonding occurs between H and Cl in

HCl

• Covalent (Molecular)

• Ionic

• Metallic

• can not determin

Multiple Choice

Which type of bonding occurs between Al and N in

AlN

• Covalent (Molecular)

• Ionic

• Metallic

• can not determin

Multiple Choice

Which type of bonding occurs between N and Cl in

NCl₃

• Covalent (Molecular)

• Ionic

• Metallic

• can not determin

Multiple Choice

The Octet Rule states that an atom with 8 valence electrons is the most stable/low-energy configuration (except for H & He which need 2).

Which group of atoms already have this electron configuration?

• Alkaline Earth Metals

• Nonmetals

• Alkali Metals

• Noble Gases

Multiple Choice

Is Hydrogen considered a metal or a non-metal?

• Metal

• Non-metal

Multiple Choice

What do we call a covalent bond where electrons are shared UNEVENLY or UNEQUALLY?

• Ionic

• Polar Covalent

• Nonpolar Covalent

• Van der Waals Force

Multiple Choice

Which element satisfies the "octet rule"?

• Lithium

• Chlorine

• Krypton

• Helium

Multiple Choice

Why do atoms share electrons?

• To attain the electron configuration of a noble gas.

• To become ions and take a charge

• to increase the mass

• it's a nice thing to do.

Multiple Choice

How would you draw a Lewis dot diagram for Magnesium?

Multiple Choice

How many electrons should Nitrogen (N, atomic # 7) have around its Lewis dot model?

• 2

• 3

• 4

• 5

• 8

Multiple Choice

How many dots would you put around carbon, a group 14 element, when drawing it's Lewis Dot diagram?

• 4

• 6

• 8

• 18

Multiple Choice

This could be the Lewis dot diagram of

• Mg

• Cl

• C

• O

Multiple Choice

Determine the type of bond in a hydrogen molecule (H₂).

• Double covalent

• Single covalent

• Ionic

• Triple covalent

Multiple Choice

Oxygen has 6 valence electrons. How many more electrons does it need to fulfill the octet rule

• 1

• 2

• 3

• 4

Multiple Choice

How many electrons are shared in a double bond?

• 2 electrons (1 pair)

• 4 electrons (2 pair)

• 6 electrons (3 pair)

• 8 electrons (4 pair)

Multiple Choice

In an electron dot diagram, two pairs of shared electrons represents a ...

• single bond

• double bond

• triple bond

• quadruple bond

Multiple Choice

This Lewis Dot Structure for water is correct

• True

• False

Multiple Choice

A Nitrogen molecule (N₂) has one triple bond. How many electrons do the nitrogen atoms share?

• 1

• 2

• 3

• 4

• 6

Multiple Choice

A Nitrogen molecule (N2) has one triple bond. How many electrons do the nitrogen atoms share?

• 1

  1

• 3

• 4

• 6

Multiple Choice

What type of chemical bond is being shown in the F₂ molecule?

• single covalent bond

• double covalent bond

• triple covalent bond

• quadruple covalent bond

Multiple Choice

What is the correct Lewis structure for NH₃?

Multiple Choice

What does the prefix di- mean?

• One

• Two

• Three

• Four

Multiple Choice

What does the prefix tetra- mean?

• One

• Two

• Three

• Four

Multiple Choice

When there is only one atom of the first element in a molecular compound's formula, the prefix mono is used.

• True

• False

Multiple Choice

Name the molecular compound CO

• carbon monoxide

• monocarbon monoxide

• carbide

• oxygen carbide

Multiple Choice

What is the correct formula for dinitrogen tetroxide?

• N₃O₃

• (N₂)₂(O₄)₃

• N₂O₄

• N₄O₂

Multiple Choice

What is the correct name for P₃Cl₆?

• Potassium chloride

• Phosphorous chloride

• Triphosphorous hexachloride

• Tetraphosphorous heptachloride

Multiple Choice

Choose the proper name for H₂O, water.

• Hydrogen oxide

• Dihydrogen oxide

• Hydrogen dioxide

• Dihydrogen monoxide

Multiple Choice

P₂O₅

• Phosphorus Oxide

• Pentaphosphorus Dioxide

• Diphosphorous pentoxide

• Phosphoric Oxygen

Multiple Choice

What is the correct name for NO?

• Mononitrogen Monoxide
• Nitrogen Monoxide
• Mononitrogen Dioxide
• Nitrogen Oxide

Multiple Choice

What is the name of the following compound?
S₆O₃

• sulfurehexa trioxide
• hexasulfur trioxide
• hexasulfide trioxide
• trioxygen hexasulfide

Multiple Choice

What is the formula for Dichlorine Monoxide?

• Co₃O

• ClO₂

• Cl₂O

• (Cl₂)₂O

Multiple Choice

Dihydrogen monosulfide?

• H₂S

• HS₂

• HS

• H₂S₂

Multiple Choice

Which type of bonding occurs between C and O in

CO₂

• Covalent (Molecular)

• Ionic

• Metallic

• can not determine

Multiple Choice

What is the name of the following compound?

CO₂

• monocarbon monoxide

• monocarbon dioxide

• carbon dioxide

• carbon monoxide

Multiple Choice

Which type of bonding occurs between Mg and N in

Mg₃N₂

• Covalent (Molecular)

• Ionic

• Metallic

• can not determine

Multiple Choice

What is the name of the following compound?

Mg₃N₂

• magnesium nitride

• trimagnesium dinitride

• dimagnesium trinitride

• magnesium nitrate

Multiple Choice

Which type of bonding occurs between Chlorine and Oxygen in

Dichlorine Monoxide

• Covalent (Molecular)

• Ionic

• Metallic

• can not determine

Multiple Choice

What is the formula for Dichlorine Monoxide?

• Co₃O

• ClO₂

• Cl₂O

• (Cl₂)₂O

Multiple Choice

Which type of bonding occurs between Magnesium and Chlorine in

Magnesium Chloride

• Covalent (Molecular)

• Ionic

• Metallic

• can not determine

Multiple Choice

What is the formula for Magnesium Chloride?

• MgCl

• Mg₂Cl₂

• MgCl₂

• Mg₂Cl