Explain why aluminium(III )is the only stable oxidation state of aluminum in this compounds,in cont
Explain why aluminium(III )is the only stable oxidation state of aluminum in this compounds,in contrast to thallium,which has states of+1 and+3.
Explain why aluminium(III )is the only stable oxidation state of aluminum in this compounds,in contrast to thallium,which has states of+1 and+3.
A、Ionic bondingIonic bonding
B、Metallic bonding
C、Covalent bonding
D、Hydrogen bonding
Explain the structure of C3O2in terms of the bonding in the molecule.
水溶液中SO2作为还原剂还原(a)KMnO4溶液到MnSO4;(b)K2Cr2O7的酸性溶液到Cr3+离子;(C)Hg(NO3)2水溶液到金属汞。写出这些反应的方程式。
LaCl3常见的水合物有LaCl3·7H2O,LaCl3·3H2O,LaCl3·H2O;试设计一个方案从LaCl3·7H2O制取LaCl3·3H2O和LaCl3。
正三价轻稀土离子(Ln3+)和二苯基-18-冠-6(C20H24O6)生成的Ln(NO3)3·C20H24O6型螯合物中,配位原子是______原子,Ln3+周围共有______个______元环,配合物中Ln3+的配位数是______。
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