SOL Review Biochemistry and Cell Structure and Function

The chemical compound of water is

• HO
• H₂O
• H₃O
• HO₂

Tags

NGSS.MS-PS1-1

Pure water has a

• Neutral pH 
• Negative pH
• Positive pH
• Both Negative and Positive pH

A solvent is...

• substance into which the solute dissolves
• a compound being dissolved
• a substance that does not dissolve
• None of the above

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-PS1-1

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

Tags

NGSS.HS-ESS2-5

Ice floats on water because

• of cohesion.
• ice has a higher density than water.
• water shrinks when it freezes.
• water expands when it freezes.

Water molecules are polar, with the

• oxygen side being slightly positive and the hydrogen side being slightly negative.
• oxygen and hydrogen sides being slightly positive.
• oxygen and hydrogen sides being slightly negative.
• oxygen side being slightly negative and the hydrogen side being slightly positive.

Tags

NGSS.HS-PS1-3

What property of water allows water to stick to other water molecules?

• adhesion
• cohesion
• heat capacity
• capillary action

What properties of water allows the water molecules to stick together?

• adhesion
• cohesion
• surface tension
• capillary action

What properties of water allows the water molecules to stick to other molecules?

• adhesion
• cohesion
• surface tension
• capillary action