Bonds/Properties Of Water

Question 1

Properties of water

Answer 1

• Expands as it freezes
• Excellent solvent
• Adhesion and Cohesion
• Surface Tension

Question 2

Water does not interact with….

Answer 2

Uncharged or non-polar molecules

Question 3

Non-polar molecules are considered

Answer 3

Hydrophobic

Question 4

Cohesion

Answer 4

Attraction force between molecules of the same substance

Question 5

Adhesion

Answer 5

Attraction force between different molecules

Question 6

Surface tension

Answer 6

Property of the surface of a liquid that allows it to resist an external force due to the cohesive nature of its molecules

Question 7

Dissociation of water

Answer 7

Equilibrium reaction where one water molecule donates its proton to another water molecule, converting it to a hydronium ion

Question 8

What are the 4 main elements?

Answer 8

Carbon
Oxygen
Nitrogen
Hydrogen

Question 9

Valence Electrons

Answer 9

Number of electrons in an atoms outermost shell

Question 10

How many electrons can an atom fit in each of its shells?

Answer 10

2 in the innermost, 8 in each of the other layers

Question 11

Covalent Bonds

Answer 11

Created from the sharing of electrons between two atoms

Question 12

Non Polar v Polar

Answer 12

Non-Polar bonds have equally shared electrons; Polar bonds are not equal

Question 13

Ionic Bond

Answer 13

Formed when atoms COMPLETELY lose or gain electrons (full transfer)

Question 14

Which bonds are strong?

Answer 14

Covalent and Ionic

Question 15

Hydrogen Bonds

Answer 15

Form between molecules, not atoms; formed by electrical attraction of the partial charges of polar molecules