Boog Substance 1
Substance 2
A
+
3. A company that makes frying pans needs
to create new substance to coat the pans.
The substance must have a high melting
point. To create this new substance, workers
mixed together two substances that melt at
low temperatures in a sealed container. The
diagram above shows the repeating groups
of atoms that make up the two starting
substances.
Substance 1
Substance 2
B
+
Substance 1
Substance 2
с
After mixing, the workers found two
substances that melt at higher temperatures
in the sealed container. (Nothing had
escaped.) Which of the diagrams to the left
shows the repeating groups of atoms that
make up the ending substances?
Substance 1
Substance 2
D
a Diagram A
6 Diagram B
Diagram
17:18