Describe how to prepare 400 ml of a disinfectant solution that requires a 1:8 dilution from a concentrated stock solution.

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

tracks, burrows, eggshells, nests, tooth marks, or gastroliths

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.