作者pai196 (白)
看板TransBioChem
标题[化学] 几题化学问题
时间Thu Jun 30 23:46:53 2011
1.Electron affinity of elements in a family is relatively constant,why?
2.Provide two possible names for TiO2,why?
3.How can we predict whether an oxide will be acidic or basic,based on its
composition.
What is meant by the terms acidic oxide and base oxide?
4.Indicate the hybridization of the central atom in BeCl3, CS2, PF6(负一价)
5.How would you expect the properties of vulcanized rubber to vary as the
percentage of sulfer increases? Explain.
6.On a phase diagram,why does the line thatseparates the gas and liquid phases
end rather than go to infinite pressure and temperature?
这几题希望板上的大家一起帮我解决疑惑 谢谢
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