You can use a ball-and-stick model to show the atomic structure of a molecule. Ethanol has the chemical formula C2H6O. Its model is shown below.

Question

Your teacher wants you to make a model for butanol (C4H10O). What supplies will you need? Match each of the materials with the number needed to model butanol.

A. Black circle
B. Gray circle
C. Red circle

1. 1
2. 10
3. 4
4. 0

Answer 1

To create a ball-and-stick model of butanol (C4H10O), you will need to represent the atoms in the molecule as follows:

1. Carbon (C) is typically represented by a black circle.
2. Hydrogen (H) is represented by a gray circle.
3. Oxygen (O) is represented by a red circle.

For butanol (C4H10O):

• There are 4 carbon atoms (C) → You will need 4 black circles.
• There are 10 hydrogen atoms (H) → You will need 10 gray circles.
• There is 1 oxygen atom (O) → You will need 1 red circle.

Now, we can match the materials with the number needed:

• A (Black circle for Carbon) → 3 (because you need 4 carbon atoms)
• B (Gray circle for Hydrogen) → 2 (because you need 10 hydrogen atoms)
• C (Red circle for Oxygen) → 1 (because you need 1 oxygen atom)

So the final mapping is:

• A. Black circle → 4
• B. Gray circle → 10
• C. Red circle → 1