Water Properties

What does water exhibit when there are differences in atomic electronegativities?

• Surface tension

• Polarity

• Adhesion

• Cohesion

Many substances, for example, salt (NaCl) and sucrose, dissolve quickly in water. This is because water is

• adhesive

• hydrophobic

• nonpolar

• polar

Tags

NGSS.MS-PS1-2

Water drops that fall on a surface tend to form rounded drops or beads. This is due to the __________ of water.

• adhesion

• cohesion

• density

• specific heat

If you touch the edge of a paper towel to a drop of colored water, the water will move up into the towel or be absorbed by it. This is a demonstration of water's

• capillary action

• density

• ability to dissolve most substances

• specific heat

Imagine you are a scientist studying the composition of water. What elements make up water and in what ratio?

• Oxygen and Hydrogen in a 2:1 ratio

• Oxygen and Hydrogen in a 1:2 ratio

• Hydrogen

• Oxygen

Tags

NGSS.MS-PS1-1

What is the name of the weak bond interaction that occurs between the negative and positive regions of two separate molecules?

• Covalent bond

• Hydrogen Bond

• Adhesion

• Cohesion

What is the difference between cohesion and adhesion?

• Cohesion is when hydrogen bonds are formed between two different molecules, while adhesion is when hydrogen bonds are formed within the same molecule.

• Cohesion is when hydrogen bonds are formed within the same molecule, while adhesion is when hydrogen bonds are formed between two different molecules.

Tags

NGSS.MS-ESS2-4

What can result from hydrogen bonds between cohesion and adhesion?

• Surface tension

• Polarity

• Covalent bonds

What are emergent properties?

• When a hydrogen bond forms within the same molecule

• When cohesion, adhesion, and surface tension allow water to demonstrate additional chemical behaviors

• When a water molecule exhibits polarity

• When a hydrogen bond forms between two different molecules

What property of water allows it to have a high solvency ability in its liquid state?

• Adhesive property

• Cohesive property