Topic 2.1 - Starter - Properties of Water

What property of water allows it to be such a versatile solvent that it is often called the "universal solvent?"

• Adhesion

• Polarity and cohesion

• High heat capacity

• Expansion upon freezing

Attractions between water molecules due to polarity 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 attraction to other water molecules.

• adhesion
• capillary action
• cohesion
• surface tension

What two elements make up water?

• Helium and oxygen
• Hydrogen and oxygen
• helium and carbon
• oxygen and carbon

Tags

NGSS.MS-PS1-1

Refer to the picture; the water sticks to the leaf because of:

• Adhesion

• Cohesion

Tags

NGSS.HS-ESS2-5

How does a hydrogen bond form?

• Between the positive hydrogen of one water molecule and the negative oxygen of another

• Between the positive hydrogen of one water molecule and the negative hydrogen of another

• Between the positive oxygen of one water molecule and the negative oxygen of another

• Between the positive hydrogen of one water molecule and the positive hydrogen of another

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

Pure water has a pH of

• 6

• 15

• 3

• 7

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.

The ability of sugar to dissolve in water is called

• malleability

• Density

• State

• solubility