Water properties

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

The tightness across the surface of water that enables insects to walk on it is

• Adhesion

• Capillary action

• Surface tension

• Polarity

Why is it helpful to nature that ice floats?

• fish swim around the ice
• fish swim on top of the ice
• fish swim underneath the ice
• ice doesn't float

molecule in which opposite ends have opposite electric charges

• cohesion
• polar molecule
• hydrogen bond
• solution

Large bodies of water do not quickly fluctuate in temperature. Why?

• Water is a solvent.
• Water has a high heat capacity.
• Water acts as a buffer.
• Water is non-polar.

The fact that ice floats on liquid water is due to the fact that water's solid form is _____________ than its liquid form.

• Less polar

• More polar

• Less dense

• More dense

What type of bond is found BETWEEN water molecules?

• Hydrogen bonds

• Ionic bonds

• Nonpolar covalent bonds

• Polar covalent bonds

Surface tension of water is the cohesive force between water molecules and other molecules.

• True

• False

Water is a universal solvent because it...

• It can be found anywhere
• It freezes when it gets cold
• floats when frozen
• Dissolves most substances

What word describes when water is attracted to other substances?

• Cohesion

• Adhesion

• Capillary action

• Surface tension