Properties of Water Pre Quiz

Which type of chemical bond is formed when electrons are shared and is a stronger bond that is not easily broken?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Van der Waals force

Tags

NGSS.HS-PS1-4

What makes a molecule polar?

• Equal sharing of valence electrons
• Unequal sharing of valence electrons
• Stealing of electrons
• Temporary charges that come and go

Because water has a positively charged end and a negatively charged end, it can be described as

• amphipathic
• hydrophobic
• polar
• nonpolar

Tags

NGSS.HS-PS1-3

Large bodies of water do not quickly fluctuate, or change, in temperature. Why?

• Water is a solvent.
• Water has a high heat capacity.
• Water acts as a buffer.
• Water is non-polar.

Tags

NGSS.HS-ESS2-5

Why does ice float?

• As water freezes, it expands and its density decreases.
• As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
• As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
• As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

Tags

NGSS.MS-PS1-4

The property of water that allows water molecules to stick to each other is

• adhesion
• cohesion
• density
• specific heat

Tags

NGSS.HS-ESS2-5

The property of water that allows water molecules to stick to another substance is

• adhesion
• cohesion
• density
• specific heat

Tags

NGSS.HS-ESS2-5

Hydrophobic substances such as vegetable oil are

• nonpolar substances that repel water molecules.

• nonpolar substances that have an attraction for water molecules

• polar substances that repel water molecules

• ar substances that have an affinity for water.

• charged molecules that hydrogen-bond with water molecules.

Tags

NGSS.HS-ESS2-5