Hydrogen Bonds

The dashed lines represent

• hydrogen bonds

• covalent bonds

• ionic bonds

• delta

How many hydrogen atoms are in one water molecule?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Which is more electronegative?

• hydrogen

• oxygen

What kind of charge is on hydrogen atoms?

• positive

• negative

• north

• south

The water molecules are arranged

• by size

• with opposites away from each other

• with opposites next to each other

• randomly

Tags

NGSS.HS-PS1-3

What is the cause of attraction between water molecules?

• gravitational force

• elastic force

• mechanical force

• electrostatic force

Tags

NGSS.HS-PS1-3

Polar molecules

• have even charge density

• are symmetric

• form hydrogen bonds

• have 10 atoms per molecule

Tags

NGSS.HS-ESS2-5

Nonpolar molecules include

• fats only

• oils only

• both fats and oils

• fats, oils and waxes

Oils are

• hydrophobic

• hydrophillic

The nucleic acid DNA is double stranded. The two strands are held together by

• hydrogen bonds

• covalent bonds

• proteins

• fats