Chemistry S1 Final Exam

Metals have the following characteristics:

• High electrical conductivity

• Low melting points

• Poor thermal conductivity

• Brittle nature

Why are the Noble Gases non-reactive?

• They have incomplete outer electron shells.

• They have a full valence electron shell.

• They are metals.

• They are highly electronegative.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Is PH₃ ionic, covalent, or metallic?

• Ionic

• Covalent

• Metallic

• None of the above

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-3

What is the correct Lewis Structure for HF?

• H-F with a single bond and three lone pairs on F

• H=F with a double bond and two lone pairs on F

• H-F with a single bond and no lone pairs on F

• H-F with a triple bond and one lone pair on F

Is the bonding in CO₂ ionic, covalent, or metallic?

• Ionic

• Covalent

• Metallic

• None of the above

Tags

NGSS.HS-PS1-1

• 0

• 1

• 2

• 3

• N with two single bonds to O and one lone pair on N

• N with one double bond to O, one single bond to O, and one lone pair on N

• N with two double bonds to O and no lone pairs on N

• N with one triple bond to O and one single bond to O

What is the name of the chemical symbol NO?

• Nitrogen monoxide

• Nitric oxide

• Nitrogen dioxide

• Nitrous dioxide

• Lead oxide

• Lead(II) oxide

• Lead(IV) oxide

• Lead monoxide

• Sodium hydroxide

• Sodium oxide

• Sodium hydride

• Sodium peroxide