A molecule of ethanol has two carbon atoms, six hydrogen atoms, and one oxygen atom. A ball-and-stick model of ethanol is made from the following components:
-One red ball
-Two black balls
-Six white balls
-Eight sticks
What do the black balls in the model represent?
A: Bond between atoms
B: Hydrogen atoms
C: Carbon atoms
D: Oxygen atoms
C: Carbon atoms
Use the model of a molecule to answer the question.
H H
| |
H — C — C — O — H
| |
H H
How many atoms of carbon does this molecule have?
This molecule has 2 atoms of carbon.
Which term describes the repeated arrangement of the same molecule?(1 point)
Responses
extended structure
extended structure
molecular model
molecular model
bonds
bonds
atoms
extended structure
The black balls in the model represent carbon atoms.
To determine what the black balls in the model represent, we need to understand the composition of ethanol. Ethanol is composed of two carbon atoms, six hydrogen atoms, and one oxygen atom.
In the ball-and-stick model, the different components represent different elements. The red ball represents the oxygen atom, and the white balls represent the hydrogen atoms as they are more abundant in the molecule.
So, the black balls in the model represent the carbon atoms.
Therefore, the answer is C: Carbon atoms.