Unit 9 Chemical Bonding

What rule generally describes how atoms will ionize or bond when forming a compound?

• Hund’s rule

• Octet rule

• Pauling rule

• Valence rule

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is the correct electron dot structure for nitrogen?

• 
• 
• 
• 

What change occurs to the atoms when they form their covalent bonds with respect to the octet rule and how does it effect them energetically?

• Fill up their valence electron shell to lower their energy level

• Fill up their valence electron shell to increase their energy level

• Spread out their valence electrons to lower their energy level

• Spread out their valence electrons to increase their energy level

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which compounds form brittle solids with high melting points and are electrical conductors once dissolved?

• Ionic Compounds

• Metal

• Molecular Compounds

• Alloys

Predict which of the following compounds will have the highest lattice energy.

• Na₂O

• NaCl

• MgS

• NaF

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-3

Predict which of the following compounds will have the lowest lattice energy.

• RbCl

• NaCl

• KCl

• LiCl

Tags

NGSS.HS-PS1-3

What is the correlation with the water solubility of an ionic compound and its lattice energy?

• No correlation

• Solubility increases with lattice energy increasing

• Solubility decreases with lattice energy increasing

What is the correlation with the melting temperature of an ionic compound and its lattice energy?

• No correlation

• T_m increases with lattice energy increasing

• T_m decreases with lattice energy increasing

Tags

NGSS.HS-PS2-4

Which of the following covalent bonds would be the shortest?

• Si≡N

• Si–N

• Si–P

• Si=P

What is the correlation with the bond length and the bond strength?

• No correlation

• Bond strength increases with increasing length

• Bond strength decreases with increasing length

Tags

NGSS.HS-PS1-4