Question

question 1 of 10
what special information does the ball-and-stick model of a molecule give?

a. the ball-and-stick model shows how the molecule was formed.

b. the ball-and-stick model shows what bonds are covalent.

c. the ball-and-stick model shows how reactive the molecule is.

d. the ball-and-stick model shows the shape of the molecule.

Explanation:

• Option A: Ball - and - stick models don't show the formation process of a molecule. The formation of a molecule involves chemical reactions and reaction mechanisms, which are not represented by this model.
• Option B: Ball - and - stick models represent bonds as sticks, but they don't distinguish between covalent and other types of bonds in a way that shows which bonds are covalent. The type of bond (covalent, ionic etc.) is determined by other means like electronegativity differences, not by the ball - and - stick model.
• Option C: The reactivity of a molecule depends on factors like the presence of functional groups, bond energies, and electron distribution. A ball - and - stick model doesn't provide information about the reactivity of a molecule.
• Option D: Ball - and - stick models use balls to represent atoms and sticks to represent bonds. This arrangement helps in visualizing the three - dimensional shape (geometry) of the molecule, including the angles between bonds and the spatial arrangement of atoms.

Answer:

D. The ball - and - stick model shows the shape of the molecule.