IB Chem: U3 Review

Which of the following is NOT formed by a covalent bond?

• K₂S
• H₂O
• I₂
• CO₂

Name the following compound: 
N₂O₄

• dinitrogren tetraoxide
• tetranitrogen dioxide
• nitrogen oxide
• dinitrogen tetraoxygen

Name the following compound: 
CO₂

• monocarbon dioxide
• carbon oxide
• carbon dioxide
• oxygen carbonide

Name the following compound:
H₂O

• hydrogen oxide
• dihydrogen oxide
• trihydroxide
• dihydrogen monoxide

Tags

NGSS.MS-PS1-1

Write the formula for:
dinitrogen tetroxide

• N₂O₄
• NO₂
• NO
• N₄O₈

Write the formula for:
disulfur decafluoride

• 2SF₁₀
• SF₅
• S₂F₁₀
• F₁₀S₂

According to the octet rule most elements need _______ valence electrons.

• 2
• 8
• 6
• 18

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

If electrons are shared unequally then the bond is....

• Non-polar covalent
• Ionic
• Non-polar ionic
• Polar covalent

Does H₂O have hydrogen bonding?

• yes
• no

Hydrogen bonding occurs between adjacent molecules that contain hydrogen atoms bonded to N, O, or F. Which of the following molecules could experience hydrogen bonding interactions?

• CBr₄

• NO₂

• H₂S

• NH₃