Unit 3 Bonding Test

Classify the O — H bond in CH₃OH as ionic, polar covalent, or nonpolar covalent.

• Ionic

• Polar Covalent

• Nonpolar Covalent

Tags

NGSS.HS-PS1-1

List all types of bonding present in the compound CaCO3.

I. ionic bond

II. polar covalent bond

III. nonpolar covalent bond

• I

• II

• III

• I and II

• II and III

Answer explanation

The bonds in the polyatomic portion are polar covalent. Oxygen is more electronegative than Carbon.

Tags

NGSS.HS-PS1-3

Classify the C — Cl bond in CCl₄ as ionic, polar covalent, or nonpolar covalent.

• Ionic

• Polar Covalent

• Nonpolar Covalent

The number of lone electron pairs in the N₂ molecule is ___.

• 1

• 2

• 3

• 4

• 5

Answer explanation

Each Nitrogen has a lone pair.

The Lewis structure reveals only single bonds in which of the following species?

• CO₂

• CO

• CO₃^2-

• Cl₂CO

• CCl₄

The Lewis structure reveals a double bond in which of the following molecules?

• Br₂

• O₂

• N₂

• H₂

• CH₄

Tags

NGSS.HS-PS1-1

Classify the Ca — Cl bond in CaCl₂ as ionic, polar covalent, or nonpolar covalent.

• Ionic

• Polar Covalent

• Nonpolar Covalent

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

List all types of bonding present in the ion SO₄^2-.

I. ionic bond

II. polar covalent bond

III. nonpolar covalent bond

• I

• II

• III

• I and II

• II and III

Tags

NGSS.HS-PS1-3

List all types of bonding present in the molecule S₈.

I. ionic bond

II. polar covalent bond

III. nonpolar covalent bond

• I

• II

• III

• I and II

• II and III

The total number of valence electrons in the ion NH₄⁺ is

• 8

• 9

• 10

• 17

• 18