5.5 Assignment - Water and Aqueous Systems

Water is made out 1 oxygen atom and ___ hydrogen atom(s).

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

What type of intermolecular force does water experience?

• dispersion

• dipole

• covalent

• hydrogen "bond"

True or False: Water is a bit polar.

• True

• False

Tags

NGSS.HS-ESS2-5

Which term refers to the surface on which water rest on?

• Substrate

• Surfactant

• Surface Tension

• Hydrogen Bond

Tags

NGSS.HS-ESS2-5

What causes beaded water?

• The uniform hydrogen bonds across all water molecules.

• The low surface tension of water.

• The pulling of molecules on the surface inward.

• The high surface area of water.

Which term is a fancy way of saying detergent (soap)?

• Substrate

• Surfactant

• Surface Tension

• Hydrogen Bond

What happens when water rests on a polar substrate? select all that apply

• The substrate does not interrupts hydrogen bonding.

• The drop of water remains round.

• The substrate attracts the water molecules onto itself.

• The drop of water flattens.

Adding surfactant to water will _________ its surface tension.

• increase

• decrease

Why does water have a high boiling point? select all that apply

• It is able to hydrogen bond once due to the oxygen having 1 lone pair.

• It is able to hydrogen bond twice due to the oxygen having 2 lone pairs.

• It has strong hydrogen bonds.

• It has weak hydrogen bonds.

Tags

NGSS.HS-ESS2-5

True or False: Solid water is less dense that liquid water.

• True

• False

Tags

NGSS.HS-ESS2-5