Displacement: A chemical reaction in which one element replaces another element in a compound A halogen will displace a halide from solution if the halide is
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from KCr(SO4)2 12H2O(s) pale purple (heat green) Due to impurities, it is common for Cr(III) to appear green in solution Cr(OH)3(s)
Inorganic Chemistry and the Periodic Table The reactivity increases down The electron is unstable at the higher energy level and so drops back down
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from KCr(SO4)2 12H2O(s) pale purple (heat green) Due to impurities, it is common for Cr(III) to appear green in solution Cr(OH)3(s) NH3 dropwise to Cr3+ (aq)
G C E (Advanced Level) CHEMISTRY Grade 12 Unit 6: Chemistry of s, p and d Block Elements Department of Science Faculty of Science and Technology