An element has two naturally occurring isotope and your are asked to find the average atomic mass. Why can't you just add the individual masses of the isotope and divide by two?

Five different substances are given to you to be dissolved in water. which substances are most likely to undergo dissolution in water? check all that apply. view available hint(s) check all that apply. sodium fluoride, naf octane, c8h18 propanol, ch3ch2ch2oh potassium iodide, ki benzene, c6h6