WCA Chemistry Bonding part 2

Which of the following shapes are more likely to result in a overall nonpolar charge?

• Bent

• Triginal Pyramidal

• Tetrahedral

• T-shaped

What is a property of Polar structures at the bulk scale.

• Brittle

• Dissolves in non-polar liquid

• Likely to be a solid at room temprature

• dissolves in water

Which bond type is stronger

• Intramolecular bonds

• Intermolecular bonds

When a water molecule bonds with another water what is the strongest bond that forms between them

• Polar

• Hydrogen bond

• Dipole-Dipole Bond

• London-dispersion forces

What determines the shape of a molecule

• Lone pairs and shape

• Lone pairs and Bonds

• Intermolecular interactions

• Hydrogen bonds

The stornger the intermolecular forces the _______ the boiling poin t

• Higher

• Lower

Why are ionic bonds not able to flow?

• Ionic bonds can flow freely in liquid form.
• Ionic bonds are formed by sharing electrons between atoms.
• Ionic bonds are not able to flow because the ions are fixed in a rigid lattice structure in solid form.
• Ionic bonds are weak and easily broken in solid state.

Does CH₄ have hydrogen bonding when it bonds with itself ?

• yes
• no

Which is the correct molecular structure for carbon dioxide CO₂?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-2

Why is water considered a polar molecule?

• The oxygen end is slightly negative and the hydrogen end is slightly positive
• The hydrogen end is slightly negative and the oxygen end is slightly positive
• The hydrogen and oxygen are covalently bonded     
• Because it is hydrophobic

Tags

NGSS.HS-PS1-3