Use the mass spectrum of rubidium to determine the atomic mass of rubidium. Mass spectrum of rubidium with percent intensity on the vertical axis and mass (amu) on the horizontal axis. The spectrum includes the percent intensities of two isotopes of rubidium, Rb-85 with a peak intensity of 100%, and Rb-87 with a peak intensity of about 40%.

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.

Apiece of metal 75g at 110°c is dropped in a container with 500g at 20°c. the h2o if temperature is 24°c find specific heat capacity of metal

Do you think you could give me the answers to #29?