Hydrogen Bonding and Water

Hydrogen bonds are attraction forces between hydrogen atom, H bonded with high electronegativity atom such as ...in other molecules

• Fluorine

• Oxygen

• Sodium

• Nitrogen

Which label shows hydrogen bond in between water molecule?

• X

• Y

• Z

Bond Y is called...

• Hydrogen bond

• Dative bond

• Covalent bond

• Ionic bonf

Oxygen atom with label X has

• High electronegativity

• High electropositivity

Why does hair looks straight when wet?

• Hydrogen bond between water and protein molecules of hair

• Hydrogen bond between protein membrane among hairs

Hydrogen bond between ethanol molecule caused the ethanol has high boiling point

• True

• False

Label the hydrogen bond

• X

• Y

• Z

• X and Z

• Y and Z

Bond Y is called

• Dative bond

• Covalent bond

• Ionic bond

• Hydrogen bond

• Van der Waals force

Tags

NGSS.HS-PS1-4

Diagram shows that when aaron licked his fingers, its easier for him to turn opages of book.

This happen due to

• Covalent bond between water on fingers with cellulose of paper

• Hydrogen bond between water on fingers with cellulose of paper

• Ionic bond between water on fingers with the cellulose of paper

Bond with red lines are called (a)   bond