Which of the following can happen during a chemical change? a. atoms gain or lose protons and change into new types of atoms. b. bonds break, and new bonds form c. nuclei of atoms break apart and the subatomic particles recombine. d. all of the electrons in the atom are lost.

The least penetrating form of radiation is

9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.

Which composition of water moves to begin a deepwater current?