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:
Answers: 2
Chemistry, 22.06.2019 06:40
Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.
Answers: 3
Chemistry, 22.06.2019 14:30
Calculate the mass of carbon in 97.0 g of sucrose c12h22o11
Answers: 3
Wolframul pur poate fi obţinut prin reducerea oxidului de Wolfram (VI) cu:
a) Zinc; b)oxid de carbo...
English, 20.04.2020 16:59
Mathematics, 20.04.2020 16:59
Mathematics, 20.04.2020 16:59
Spanish, 20.04.2020 16:59
English, 20.04.2020 16:59
Mathematics, 20.04.2020 16:59
Chemistry, 20.04.2020 16:59
Mathematics, 20.04.2020 16:59
Mathematics, 20.04.2020 16:59