Charlie is frying an egg in a pan located over a gas burner. He develops a model to determine the energy produced by the flame in the gas burner by calculating the energy absorbed by the egg. Which assumption will Charlie need to make in order for his model to be considered a closed system?

B.)

Explanation:  Heat flows from pan to sounroundings

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.