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Chemistry, 20.11.2019 02:31 ineedhelp2285
Compostos iônicos como cloreto de sódio (nacl), óxido de sódio (na2o) e óxido de alumínio (al2o3) são sólidos cristalinos formados a partir de ligações iônicas que possuem elevados pontos de fusão e ebulição. além das ligações iônicas, os elementos químicos realizam ligações covalentes e metálicas. elaborado pelo professor. nesse contexto, leia as afirmativas a seguir. i - a ligação iônica ocorre entre um não metal e outro não metal. ii - na ligação covalente, há o compartilhamento de elétrons. iii - as moléculas são formadas a partir de ligações metálicas. é correto apenas o que se afirma em: alternativas alternativa 1: i. alternativa 2: ii. alternativa 3: iii. alternativa 4: ii e iii. alternativa 5: i, ii e iii.
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Compostos iônicos como cloreto de sódio (nacl), óxido de sódio (na2o) e óxido de alumínio (al2o3) sã...
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