pH and Properties of Water

Why is a water molecule polar?

• Because there is an uneven distributions of electrons between the oxygen and hydrogen atoms

• Because water is neutral

• Because water is one of the few compounds found in a liquid state.

A compound that is known to produce hydroxide (OH-) in solutions is called a..

• Base

• Acid

• Buffer

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.HS-ESS2-5

Lemon juice is acidic. Where on the pH scale would it be?

• 1-6

• 7

• 8-14

Water is extremely cohesive because of ___________ bonding?

• hydrogen

• covalent

• ionic

The rise of water in a narrow tube against the force of gravity is called ___________?

• turgor pressure

• capillary action

• transpiration

The substance being dissolved in a solution?

• solute

• solvent

• solute plus solvent

A pH of 3 is how many times more acidic than a pH of 5?

• 2

• 20

• 10

• 100

According to the pH range which substance is more acidic than lemon juice

• Hydrochloric acid
• cabbage
• milk

A solution has a pH of 7.0.  What would happen to the pH if OH ions were added?

• pH would go up
• pH would go down
• pH would stay the same
• None of these