Răspuns:
MBa(OH)2=ABa+2AO+2AH=137+2x16+2x1=137+32+2=171 g/mol
MFe2O3=2AFe+3A0=56x2+16x3=112+48=160 g/mol
MCO2=AC+2AO=AC+2AO=12+16x2=12+32=44 g/mol
MAgNO3=AAg+AN+3A0=108+14+3×16 =108+14+ 48= 170 g /mol
Cu placere!
