Question

A molecule of ethanol has two carbon atoms, six hydrogen atoms, and one oxygen atom. A ball-and-stick model of a molecule 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?

(1 point)
Responses

bonds between atoms
bonds between atoms

hydrogen atoms
hydrogen atoms

carbon atoms
carbon atoms

oxygen atoms

Answer 1

Which term describes the repeated arrangement of the same molecule?(1 point)
Responses

molecular model
molecular model

bonds
bonds

extended structure
extended structure

atoms

Answer 2

Use the table to answer the question.

Atom Color in
Molecular Model
hydrogen (H) white
oxygen (O) red
nitrogen (N) blue
carbon (C) gray
Which option correctly describes a model of methanol, CH3OH?

(1 point)
Responses

two red spheres, four white spheres
two red spheres, four white spheres

one blue sphere, four white spheres, one red sphere
one blue sphere, four white spheres, one red sphere

one gray sphere, three white spheres, one red sphere, one blue sphere
one gray sphere, three white spheres, one red sphere, one blue sphere

one gray sphere, four white spheres, one red sphere

Answer 3

carbon atoms

Answer 4

extended structure

Answer 5

one gray sphere, four white spheres, one red sphere