Chemistry, 13.04.2021 17:30 dustinquiz255
Wolframul pur poate fi obţinut prin reducerea oxidului de Wolfram (VI) cu:
a) Zinc; b)oxid de carbon (II); c) aluminiu; d) hidrogen.
Alcătuieşte ecuaţia reacţiei pentru una din variante, egaleaz-o prin metoda bilanţului electronic, indică oxidantul şi reducătorul.
E-r
B-ē:
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Wolframul pur poate fi obţinut prin reducerea oxidului de Wolfram (VI) cu:
a) Zinc; b)oxid de carbo...
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