Study Guide: Matter and Energy
Define chemistry.

 

What is the difference between an atom and a molecule?
 
 

What is the difference between an element and a compound?
 
 

What two qualities are required for something to be considered matter?
a)
b)

Which of these is an element and which is a compound?
Iron____________
Sodium chloride____________
Water____________
Hydrogen____________

Give two examples of a mixture:
a)
b)

Give two examples of pure substances (not mixtures):
a)
b)

What is the density of a block of metal that has a mass of 80 grams and a volume of 20 cm3?
 
 

Give two examples for each of the following:
Solid:

Liquid:

Gas:
 

Name the following conversions between states of matter:
solid to liquid:

gas to liquid:

solid to gas:

liquid to gas:
 

Arrange the following in increasing order of strength of the forces between the molecules of each of the following substances (label them 1 through 5 from weakest to strongest).
alcohol_____
chalk_____
iron_____
helium_____
motor oil_____

Compare and contrast the shapes of gases, liquids, and solids.
 
 

Compare and contrast the volumes of gases, liquids, and solids.
 
 

What is the law of conservation of mass?
 

Give an example of the law of conservation of mass.
 

What is the law of conservation of energy?
 
 

Give an example of the law of conservation of energy.
 
 

Which of the following are chemical changes and which are physical changes?
ice cubes melting____________

burning wood____________

metal shining____________

metal rusting____________


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