Write the balance nuclear equation showing the decay of zinc-69 to gallium-69

Match the acid base pairs by arranging the acid name with the conjugate base formula. hydrogen carbonate hydrogen phosphate carbonic acid read water sulfuric acid phosphoric acid a. co32- b. hso4- c. hco3- d. po43- e. h2po4- f. oh-

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

In 2002, the rare earth elements mine in mountain pass, california was closed because