Properties of Water and Macromolecules

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

Attractions between water molecules are called

• Covalent bonds
• Ionic bonds
• Polar bonds
• Hydrogen bonds

Tags

NGSS.HS-ESS2-5

The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attracted to other water molecules.

• adhesion
• capillary action
• cohesion
• surface tension

Tags

NGSS.HS-ESS2-5

The normal pH scale goes from

• 0 - 12
• 0 - 14
• 0 - 7
• 0 - 10

When putting salt in water, the water is considered the _________ and the salt is the ___________

• solute, solvent
• solvent, solute
• mixture, solvent
• mixture, solute

A water molecule is a ________ molecule, which has one oxygen that has a __________ charge and two hydrogens that have a ___________ charge.

• nonpolar, positive, negative
• polar, positive, negative
• polar, negative, positive
• nonpolar, negative, positive

Tags

NGSS.MS-PS1-1

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

A(n) _______ is a substance with a pH greater than 7.

• Base
• Acid
• Buffer
• Water

Is this substance acidic, basic, or neutral?

• Acidic
• Basic
• Neutral

Tags

NGSS.MS-PS1-2

A solution with a pH of 7.0 would be...

• Acid
• Base
• Neutral
• Acid and Base