Properties Of Water

Question 1

What is cohesion?

Answer 1

Cohesion is the tendency of molecules to cling to each other

It is a result of hydrogen bonding.

Question 2

What is adhesion?

Answer 2

Adhesion is the tendency of molecules to stick to polar surfaces

It is also a result of hydrogen bonding.

Question 3

What is a common example of cohesion?

Answer 3

A stream of water or raindrops

Cohesion is evident in natural phenomena like these.

Question 4

What is a common example of adhesion?

Answer 4

Putting a straw in a drink

Adhesion can be observed in everyday activities like swimming.

Question 5

Why are cohesion and adhesion important in living things?

Answer 5

They are crucial for transporting water in blood and holding cells together

Cohesion helps keep blood together while adhesion helps in vessels.

Question 6

Fill in the blank: Cohesion is the result of _______.

Answer 6

hydrogen bonding

Question 7

True or False: Cohesion and adhesion are both results of hydrogen bonding.

Answer 7

True

Question 8

What role does water play in blood?

Answer 8

Cohesion keeps blood together and adhesion helps in vessels

This is essential for proper circulation.

Question 9

What is polarity

Answer 9

a cell or molecule has distinct, opposite ends or sides

Question 10

What is hydrogen bonding

Answer 10

a weak attraction between a hydrogen atom in one molecule and a highly electronegative atom (like oxygen or nitrogen)