Test 3 Part 2 Extra Review (Extra Credit) - Bonding thru IMF

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

• K₂S

• H₂O

• I₂

• CO₂

How do covalent bonds form?

• Donating & receiving 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.

Compared to ionic compounds, molecular compounds generally have...

• good conductivity
• greater densities
• more chemical bonds
• a low boiling point

What is the VSEPR shape of H₂S?

• linear
• trigonal planar
• bent
• tetrahedral

What molecule could this be? 

• BF₃
• CH₄
• H₂O
• CO₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is NOT a property of ionic compounds?

• They conduct electricity when molten

• They conduct electricity when in solution

• They have high boiling points

• They are insoluble in water

An ionic bond involves two elements...

• Transferring electrons
• Sharing electrons

Which molecule contains a nonpolar covalent bond?

• CCl₄

• HF

• F₂

• HCl

Which element consists of positive ions immersed in a “sea” of mobile electrons?

• sulfur

• nitrogen

• calcium

• chlorine

Conductivity of a metal results from the metal atoms having

• high electronegativity

• high ionization energy

• highly mobile protons in the nucleus

• highly mobile electrons in the valence shell