Class Review - Unit 4 (LT 1-6)

When you have Si-O, what is the polarity?

• nonpolar

• polar

Tags

NGSS.HS-PS1-1

In a polar covalent bond, the electrons gather around...

• The atom with the Greatest Electronegativity

• The atom with the Lowest Electronegativity

• Each atom Equally

• None of the Above

Tags

NGSS.HS-PS1-2

Is the following molecule polar or nonpolar?

• polar because there are different types of elements bonded to the central atom

• nonpolar because the central atom has no lone pairs of electrons

• polar because the central atom has a lone pair of electrons

• nonpolar because there are no lone pairs on the central atom and the atoms bonded to the central atom are all the same

Tags

NGSS.HS-PS1-2

Why is the molecule polar?

• There is a lone pair of electrons on the central atom.

• There are different types of elements bonded to the central atom.

• There are no lone pairs of electrons on the central atom and all of the atoms bonded to the central atom are the same.

Tags

NGSS.HS-PS1-1

What molecular shape is the structure shown here? (BCl₃)

• linear
• trigonal planar
• tetrahedral
• trigonal pyramidal

What two types of atoms make a covalent bond?

• 2 Nonmetals
• 1 Nonmetal and 1 Metal
• 2 Metals
• 2 Noble Gases

Tags

NGSS.HS-PS1-2

Based on the electronegativity difference, what type of bond is this?

• nonpolar covalent

• polar covalent

• ionic

• none of the above

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2