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Constructed Response . Topic 1: Matter and Energy
Set C : Particle arrangements, phases of matter, molecular models
Base your answers to the following questions on the diagram of a molecule of nitrogen shown below.
represents one molecule of nitrogen.
Write your answers here
9. Draw a particle model that shows at least six molecules 9.
of nitrogen gas.
10. Draw a particle model that shows at least six molecules 10.
of liquid nitrogen.
11. Describe, in terms of particle arrangement, the difference 11.
Teacher Preview Copy
between nitrogen gas and liquid nitrogen.
12. Good models should reflect the true nature of the concept 12.
being represented. What is the limitation of two-dimensional
models.
Set D: Phases of matter, Phase change diagrams, temperature and kinetic energy
Base your answers to questions 13 – 16 on the information below.
Given the heating curve where substance X starts as a solid below its melting point and is heated
uniformly.
D F
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E
Temperature ( o C) B
C
A
Time ( minutes)
13. Describe, in terms of particle behavior or energy, what is 13)
hap pening to substance X during line segment BC.
Draw
14. Using ( • ) to represent particles of substance X, draw at least five 14) in the
particles as they would appear in the substance at points F. box
15. Identify a line segment in which the average kinetic energy 15)
is increasing.
16. Identify the process that takes place during line segment DE 16)
of the heating curve.
17. How does the heating curve illustrates that the heat of 17)
vaporization is greater than the heat of fusion?
362 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
Set C : Particle arrangements, phases of matter, molecular models
Base your answers to the following questions on the diagram of a molecule of nitrogen shown below.
represents one molecule of nitrogen.
Write your answers here
9. Draw a particle model that shows at least six molecules 9.
of nitrogen gas.
10. Draw a particle model that shows at least six molecules 10.
of liquid nitrogen.
11. Describe, in terms of particle arrangement, the difference 11.
Teacher Preview Copy
between nitrogen gas and liquid nitrogen.
12. Good models should reflect the true nature of the concept 12.
being represented. What is the limitation of two-dimensional
models.
Set D: Phases of matter, Phase change diagrams, temperature and kinetic energy
Base your answers to questions 13 – 16 on the information below.
Given the heating curve where substance X starts as a solid below its melting point and is heated
uniformly.
D F
Teacher Preview Copy
E
Temperature ( o C) B
C
A
Time ( minutes)
13. Describe, in terms of particle behavior or energy, what is 13)
hap pening to substance X during line segment BC.
Draw
14. Using ( • ) to represent particles of substance X, draw at least five 14) in the
particles as they would appear in the substance at points F. box
15. Identify a line segment in which the average kinetic energy 15)
is increasing.
16. Identify the process that takes place during line segment DE 16)
of the heating curve.
17. How does the heating curve illustrates that the heat of 17)
vaporization is greater than the heat of fusion?
362 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
