1. In the model above, the dark grey sphere represents carbon. What must the red sphere represent?

hydrogen

2. What must each of the four white spheres represent?

*
1 point
carbon
hydrogen
oxygen
a bond

a bond

3. What must each stick represent?

*
1 point
carbon
hydrogen
oxygen
a bond

a bond

4. Using the same model kit used for the model of methanol (above), you make a model of ethanol. This is the chemical formula for ethanol. How many dark grey spheres would you use in your model of ethanol?

*
1 point
Captionless Image
one
two
three
four

two

5. Which one of the following is a correct model for ethanol (described in question 4)? Remember that you are using the same model kit used for methanol, above.

*
1 point

Option 1

Option 2

Option 3

Option 4

Without the provided options or visual representations, I am unable to determine which one is the correct model for ethanol.

6. How many protons must be in one atom of argon?

*
1 point
18
22
39.948
40

The number of protons in one atom of argon is 18.