A piece of dry ice (solid CO2) is placed in an enclosed glass container. Discuss what occurs at the particle level. Use the postulates of the kinetic molecular theory to explain what happens to the particles as the temperature changes. Explain phenomenon using the following terms: states of matter, solid, liquid, gas, phase changes, melting, boiling, freezing, sublimation, deposition, pressure, volume, temperature, rigid, flexible, kinetic energy.

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal. b. he is determining chemical properties that are sufficient to identify the metal. c. he is determining physical properties that are insufficient to identify the metal. d. he is determining chemical properties that are insufficient to identify the metal.