Which of the following are microscopic gold particles that are used to treat disease?
a. ions
b. isotopes
c. iodoshells
d. nanoshells

What are atoms of the same element with varying number of neutrons

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.