Check Your Progress You have returned home from practice and there is a note on the fridge that says:
“There’s pizza in the fridge, reheat in the microwave if you’re hungry.”
You put the pizza in the microwave and pour yourself a glass of lemonade while you wait. The microwave beeps, and you pull the hot pizza out and set it on the counter. As you set the pizza down, you accidently knock your lemonade over. It takes you a few minutes to clean up the mess, so when you finally come back to the pizza, it is cool.
Draw a molecular model of the pizza as it cools. Include a written explanation.
Be sure to include in your model:
An arrow showing overall (macroscopic) energy movement
Air molecules with motion arrows
Pizza molecules with motion arrows
Collisions between the two molecule types
In your explanation, include the following words: collision(s), temperature, energy

Amount of liquid measured in l or lm

Why do you suppose the structural polysaccharide cellulose does not contain branches? why do you suppose the structural polysaccharide cellulose does not contain branches? branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby decreasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby increasing the rigidity and strength of the microfibrils. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby increasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby decreasing the rigidity and strength of the microfibrils.

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together