A 116.0-gram sample of a compound containing only silver and iodine is decomposed to produce 72.3 grams of silver and 43.7 grams of iodine. The empirical formula of this compound is

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms