Water

Question 1

What bonds are water molecules held together by?

Answer 1

Hydrogen bonds

Question 2

How do hydrogen bonds work

Answer 2

In covalent bonds electrons will spend more time closer to one atom than another. This means one atom will slightly be negatively charged. The positive and negative regions attract each other. In water oxygen is negatively charged and hydrogen positively charged.

Question 3

Hydrogen bonds properties

Answer 3

Are weak but occur in high numbers

Question 4

Properties of water

Answer 4

• ice is less dense than water
• water is a good solvent
• has a high specific heat capacity
• cohesion
• surface tension
• adhesive
• transparent

Question 5

What is Cohesion

Answer 5

Attraction between tow water molecules are strong because they are polar.

Question 6

What is adhesion

Answer 6

Adhesion is when water is attracted to a surface

Question 7

what makes water a Solvent

Answer 7

Water is polar meaning the positive end of water will be attracted to the negative ion and negative end of water to positive ions. This means water molecule surround the ions dissolving it.

Question 8

how does having high specific heat capacity a good property

Answer 8

A lot of energy is needed to break bonds. An example is sweating