Welcome to the Quiz!
This quiz contains 18 questions from a mix of 1 subtopics.
Which elements does a water molecule contain?
(Select all that apply)
hydrogen
nitrogen
carbon
oxygen
|
How many hydrogen atoms does a water molecule contain?
|
Which of the following chemical bonds hold oxygen and hydrogen together within a water molecule?
hydrogen
metallic
ionic
covalent
|
Within a water molecule, what partial charge does the oxygen atom have?
positive
neutral
negative
|
Which type of bonding causes water molecules to stick together?
disulphide
hydrogen
covalent
|
Give three examples of how water is used in living organisms
|
An ionic compound dissolves in water because the positive and negative ions attract to different ends of the water molecules.
true
false
|
Give one reason why water is useful as a solvent in living organisms
|
Does water have a high or low specific heat capacity?
low
high
|
Which type of bonds need to be broken to increase the temperature of water?
|
Which of the following properties of water mean that a lot of energy is needed for evaporation?
high specific heat capacity
high latent heat of fusion
high latent heat of vaporisation
|
Water has a high latent heat of vaporisation, meaning a lot of energy is required to change it from a liquid to a .
|
Which substance has the highest density?
water
ice
|
Give one reason why it is important for ice to form an insulating layer at the surface of ponds and lakes
|
Which type of chemical reaction uses water to break down molecules?
hydrolysis
condensation
|
Which key term is used to describe the tendency of water molecules to stick together?
adhesion
cohesion
|
Name the type of chemical bond that causes water molecules to stick to other materials (adhesion)
|
Water has a low specific heat capacity because hydrogen bonds require a lot of energy to be broken.
true
false
|