Section 2: Properties of Water

On the pH table, which side is more acidic. more basic, and which pH is neutral?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 < more acidic more basic > The pH 7 is neutral

Acid

a compound that releases a proton- a hydrogen ion (H+)- when it dissolves in water

Which property of water helps plants transport water from their roots to their leaves?

adhesion

Which property causes water to form beads?

cohesion

Base

compounds that remove H+ ions from a solution

A solution is a mixture of substances that is __ distributed throughout the entire mixture.

evenly

Polar molecules have two regions with a slight positive charge.

false; to make it true, add " and a slight negative charge" to the end of the statement.

Which property allows water to resist changes in temperature?

high specific heat

Solution

is a mixture of substances that is the same throughout- it is a homogeneous mixture

Solute

is a substance that dissolves in a solvent

Hydrogen Bond

is an attraction between a slightly positive Hydrogen atom and a slightly negative atom, usually Oxygen or Nitrogen

Cohesion

is the attraction among molecules of a substance

Adhesion

is the attraction among molecules of different substances

Solvent

is the substance that is present in the greater amount and that dissolves another substance

"Oil and water don't mix" because a ___ molecule can't easily dissolve in a polar solvent.

nonpolar

A ___ dissolves in a solution.

solute

Blood plasma is an example of a ___.

solute

Slightly charged regions of water molecules form hydrogen bonds.

true

Water is a polar molecule.

true