Объяснение:
1) Mr(Sb2O3) = 122*2 + 16*3 =292
2) Mr(ZnSiO3) = 65+28+16*3 =141
3) Mr(B2O3) = 11*2+16*3=70
4) Mr(HgO) =201 + 16=217
5) Mr(HF) = 1+19 =20
6) Mr(MgBr2) = 24 + 80*2 =184
Объяснение:
1) Mr(Sb2O3) = 122*2 + 16*3 =292
2) Mr(ZnSiO3) = 65+28+16*3 =141
3) Mr(B2O3) = 11*2+16*3=70
4) Mr(HgO) =201 + 16=217
5) Mr(HF) = 1+19 =20
6) Mr(MgBr2) = 24 + 80*2 =184