Hydrosphere: Water Chemistry

What type of bond is found BETWEEN water molecules? (a)  

• hydrogen bonds
• ionic bonds
• nonpolar covalent bonds
• polar covalent bonds

Surface tension of water is the cohesive force between water molecule and other molecule. (a)  

• True
• False

Cohesive force between water molecules and adhesive force between water molecules and other molecules enable this phenomenon __________________ occur.

• surface tension

• capillary action

• float on water

• photosynthesis

Which end of the water molecule has a slightly positive charge?

• the oxygen end
• the hydrogen end
• both ends are slightly positive
• neither end is positive

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

When water molecules stick easily to other water molecules, this is called what?

• cohesion
• adhesion
• solution
• polar molecule

Tags

NGSS.MS-ESS2-4

Water beads up on the surface of a penny because of what property?

• Adhesion
• High Surface Tension
• Universal Solvent
• Changes in Density

The fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid form

• less polar
• more polar
• less dense
• more dense

Tags

NGSS.MS-PS1-2

The tightness across the surface of water that enables paper clips to float is ____________.

• adhesion
• capillary action
• surface tension
• polarity

Which statement explains why water molecules stick together?

• both sides are negative
• one side has a positive charge and the other side has a negative charge
• one side has a negative charge adn the other side has a neutral charge
• both sides are positive