Water Properties

The attraction between the oxygen of one water molecule and the hydrogen of another

The repulsion between hydrogen atoms

The attraction between two oxygen atoms

The repulsion between oxygen and hydrogen atoms

Hydrogen bonds are weak chemical bonds.

A hydrogen bond forms between a slightly positive hydrogen and a slightly negative atom.

A water molecule can form only one hydrogen bond at a time.

Hydrogen bonds are responsible for many unusual properties of water.

They are continuously formed and broken.

They do not break at all.

They are never formed.

They only break, not form.

Solute and solvent

Solvent and suspension

Solute and mixture

Solvent and colloid

A mixture of water and dissolved materials

A mixture of water and undissolved materials

A pure substance

A solution where everything settles quickly

Water absorbs heat with a large change in its own temperature.

Water acts as a 'heat bank' by absorbing or releasing heat.

Life could not exist in bodies of water if there were drastic temperature changes.

Water stabilizes temperatures on Earth.

They release heat and warm the land.

They absorb heat and cool the land.

They have no effect on land temperature.

They make the land hotter.

Molecules with the highest kinetic energy leave as gas

All molecules leave the surface at the same rate

The temperature of the liquid increases

Evaporation only occurs at high temperatures

Ice is less dense than liquid water

Ice is heavier than liquid water

Ice has more heat than liquid water

Ice is more acidic than liquid water

A pH of 7 is neutral

Solutions with a pH below 7 are acidic

Solutions with a pH above 7 are basic

The pH scale ranges from 0 to 10

Bleach

Lemon juice

Tomato juice

Vinegar

Because oxygen and hydrogen share electrons equally

Because the oxygen atom has a stronger attraction for electrons than hydrogen

Because both ends of the molecule are positive

Because water molecules are always neutral

Because extreme pH levels can affect chemical reactions in cells, and buffers prevent sudden changes in pH.

Because buffers make the cell membrane stronger.

Because cells need to stay acidic at all times.

Because buffers increase the temperature of cells.