Respuesta :

80.16g and divide that by the molar mass of calcium 40.08 then times the sum you get by 6.022 times 10^23

and that would be 2 atoms or molecule hope this helps and please rate below :)
karliejohnson2k
Take 80.16g and divid that by the molar mass of the calcium (40.08). Then multiply the number you bet by 6.002*10^23 .