Elementi I jedinjenja VIB I VIIB grupe PSE

Create an educational and visually appealing illustration of VIB and VIIB group elements from the periodic table, showcasing their chemical reactions, colors of compounds, and laboratory setups with beakers and test tubes in a colorful style.

Explore the Fascinating World of VIB and VIIB Group Elements

Welcome to our quiz on the VIB and VIIB groups of the periodic table! Test your knowledge on the properties, reactions, and compounds of these intriguing elements.

Join us for a fun learning experience and discover:

The exciting chemistry behind elements like Chromium and Manganese
Key reactions and color changes in their compounds
The significance of oxidation and reduction in various reactions

10 Questions2 MinutesCreated by MixingMetallic32

Prilikom termiĝkog razlaganja amonijum-dihromata kao produkti se dobijaju:

Cr2O3+N2+H2O

Cr2O3+O2+H2O

Cr2O3+N2+O2

Cr2O7+N2+H2O

U reakciji

CrCl₃ + 3NH₄OH → Cr(OH)₃ + 3NH₄Cl

Dobija se:

Talog zeleno-sive boje

Rastvor zeleno-sive boje

Talog zelene boje

Rastvor žute boje

Dodatkom baze u rastvor dihromata rastvor menja boju iz:

Narandžaste u žutu

Žute u narandžastu

Zelene u sivu

Sive u zelenu

Talog BaCrO₄ je:

Žute boje

Crvene boj

Narandžaste boje

Žute boje

Dihromat ima:

Oksdaciona svojstva

Redukciona svojstva

Mn(OH)₂ ima:

Bazni karakter

Kiseli karakter

Amfoterni karakter

Mn²⁺ jon u reakciji sa MnO₄^- jonom pokazuje:

Redukcione osbine

Oksidacine osobine

MnO₄^- jon u kiseloj sredini se:

Redukuje do Mn2+

Oksiduje do Mn2+

Redukuje do Mn6+

Oksiduje do Mn6+

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Elementi I jedinjenja VIB I VIIB grupe PSE

Explore the Fascinating World of VIB and VIIB Group Elements

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