Water Properties and pH

On the pH scale, an acid is a compound that produces a solution with a pH __________ 7.

Tags

NGSS.MS-PS1-2

What pH does a neutral substance have?

• 5

• 6

• 7

• 8

What word describes when water is attracted to other substances?

• cohesion

• adhesion

• capillary action

• surface tension

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

Tags

NGSS.MS-PS2-3

Water is a universal solvent because it...

• It can be found anywhere

• It freezes when it gets cold

• floats when frozen

• Dissolves most substances

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Which of the following is LEAST likely to dissolve in water?

• nonpolar fats and oils

• polar sugar molecules

• salt made of a positive sodium ion and a negative chloride ion

• all of the substances will dissolve easily in water

Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?

• Water is an acid.

• Water is a versatile solvent.

• Water has a high heat capacity.

•  Water acts as a buffer.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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

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

Tags

NGSS.MS-PS1-1

When a molecule has an opposite electrical charge on each end, it is known as what?

• cohesion

• polar molecule

• hydrogen bond

• solution