Ответ:
Объяснение:
1) H2SiO3
2:28:48 = 1:14:24
2) Mr(BaCO3) = 137 + 12 + 16*3 =197
Mr(FeSiO3) = 56 + 28 + 16*3 =132
Mr(Cu(OH)2) = 64 + 16*2 + 1*2 =98
3) N(III)H(I), N(III)O(II), S(VI)O(II), Cu(I)O(II)
4) ZnO, Al2O3, PbO2
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Ответ:
Объяснение:
1) H2SiO3
2:28:48 = 1:14:24
2) Mr(BaCO3) = 137 + 12 + 16*3 =197
Mr(FeSiO3) = 56 + 28 + 16*3 =132
Mr(Cu(OH)2) = 64 + 16*2 + 1*2 =98
3) N(III)H(I), N(III)O(II), S(VI)O(II), Cu(I)O(II)
4) ZnO, Al2O3, PbO2