Question

matter: elements and compounds
chemistry honors
slide 21: what are the two pieces of information represented in a chemical formula?
slide 22: study the given visual model :
a) what type of spheres are atoms represented as?
b) how many spheres are in a molecule?
c) how does the molecule of a compound differ from the molecule of an element?

Explanation:

For Slide 21: A chemical formula represents the elements present in a substance and the relative number of atoms of each element.
For Slide 22 a): Atoms are often represented as colored or differently - sized spheres to distinguish different elements.
For Slide 22 b): The number of spheres in a molecule depends on the specific molecule shown in the visual model.
For Slide 22 c): A molecule of a compound consists of atoms of two or more different elements, while a molecule of an element consists of atoms of only one element.

Answer:

Slide 21: Elements present and relative number of atoms.
Slide 22 a): Colored or differently - sized spheres.
Slide 22 b): Varies based on the model.
Slide 22 c): Compound has atoms of different elements, element has atoms of one element.