Develop models to describe the atomic composition of simple molecules and extended structures.
Emphasis is on developing models of molecules that vary in complexity. Examples of extended structures could include minerals such as but not limited to halite, agate, calcite, or sapphire. Examples of molecular-level models could include drawings, 3-D models, or computer representations showing different molecules with different types of atoms.
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Q 1/10
Score 0
Which model best represents the atomic composition of a water molecule?
30
H2O: two hydrogen atoms bonded to one oxygen atom
CO2: one carbon atom bonded to two oxygen atoms
NaCl: one sodium atom bonded to one chlorine atom
C6H12O6: six carbon atoms bonded to twelve hydrogen and six oxygen atoms
Q 2/10
Score 0
Which of the following represents an extended structure rather than a simple molecule?
30
Halite: a crystalline structure formed by repeating NaCl units
H2: a molecule consisting of two hydrogen atoms
O2: a molecule consisting of two oxygen atoms
CH4: a molecule with one carbon atom bonded to four hydrogen atoms
10 questions
Q.
Which model best represents the atomic composition of a water molecule?
1
30 sec
8-MS-PS1-1
Q.
Which of the following represents an extended structure rather than a simple molecule?
2
30 sec
8-MS-PS1-1
Q.
Which example illustrates a simple molecular model for carbon dioxide (CO2)?
3
30 sec
8-MS-PS1-1
Q.
What characteristic differentiates an extended structure from a simple molecule?
4
30 sec
8-MS-PS1-1
Q.
Which of the following best describes the structure of calcite?
5
30 sec
8-MS-PS1-1
Q.
Which model accurately represents the molecular composition of methane (CH4)?
6
30 sec
8-MS-PS1-1
Q.
What is an example of a 3-D model that represents an extended structure like sapphire?
7
30 sec
8-MS-PS1-1
Q.
Which of the following best describes the atomic composition of the mineral halite?
8
30 sec
8-MS-PS1-1
Q.
Which representation accurately models the atomic composition of the mineral calcite?
9
30 sec
8-MS-PS1-1
Q.
How can a molecular model of oxygen gas (O2) be represented?
