Вопрос школьника по предмету Химия
Определить валентность атомов элементов в соединениях MgO, CuO,Fe2O3,K2O,NO2,P2O5,AlCl3,FeCl2,NaCl,K2S,CaS,Fe2S3
Ответ учителя по предмету Химия
Mg(II)O(II), Cu(II)O(II), Fe2(III)O3(II), K2(I)O(II), N(IV)O2(II), P2(V)O5(II), AL(III)Cl3(I), Fe(II)Cl2(I), Na(I)Cl(I), K2(I)S(II), Ca(II)S(II), Fe2(III)S3(II)
Похожие вопросы от пользователей
1)… the cats eat sweets? 2)… Dolly use the Internet? 3)… your / car move fast? 4) … these flowers cost much? 5) … you always / travel alone? 6) … your niece go to university? 7) … Garrj and Ron attend the same sport club? 8) … his dog like fish?
9)… Sandra often do the washing-up? 10) … all her classmates wear uniform? 11) … your parents watch sport programmes? 12) … her cousin understand the words of this song? 13) … the Earth go around the Sun? 14) … the postmen deliver the newspapers?