Chemistry, 14.12.2020 20:30, theoriginalstal4234
Refer to the periodic table and the electron dot model of nitrogen.
Based on the understanding of the way elements are arranged in the periodic table, which element will have the same number of valence electrons as
nitrogen?
As
Si
OB
ΠΠ
Answers: 2
Chemistry, 22.06.2019 21:20, paatnguyyen
One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .
Answers: 2
Chemistry, 22.06.2019 23:10, carmenguabaoql9kv
Afusion reaction takes place between carbon and another element. neutrons are released, and a different element is formed. the different element is a) lighter than helium. b)heavier than helium. c)the same weight as helium. d)dependent on the element that reacted with carbon.
Answers: 3
Refer to the periodic table and the electron dot model of nitrogen.
Based on the understanding of t...
Mathematics, 20.11.2020 21:30
Mathematics, 20.11.2020 21:30
English, 20.11.2020 21:30
Mathematics, 20.11.2020 21:30
History, 20.11.2020 21:30
Social Studies, 20.11.2020 21:30