<span>Zn, <span>CaCO3, <span>CuO, <span>Ca(OH)2, <span>MgCl2, <span>Ba(NO3)2Точно) </span></span></span></span></span></span>
N=n*N(a)
N=100*6,02*10^23
ответ :
N=602*1023
N=602*10^23