- 問題詳情:金屬鎳(Ni)與物質X的溶液發生反應的化學方程式為Ni+X=Cu+NiSO4,則下列説法錯誤的是()A.NiSO4中Ni的化合價為+2價 B.該反應屬於置換反應,反應過程中各元素的化合價不變 C.X的化學式為CuSO4 D.Cu的金屬活動*比Ni弱【回答】【分析】根據已有的知識進行分析,位置在前的金屬能...
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- 問題詳情:金屬鎳(Ni)與物質X的溶液發生反應的化學方程式為:Ni+X═Cu+NiSO4,則下列説法錯誤的是()A.Ni的化合價由0價變為+2價B.X的化學式為CuSO4C.該反應前後原子種類沒有發生改變D.Cu的金屬活動*比Ni強【回答】【考點】金屬的化學*質;有關元素化合價的計算;質量守恆定律及其應用.【專題...
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- Thatlittleboylikestokeepnixforhisbrothers....
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- Putthenixonfrying.Fathersaidnixonourplan.MondaythroughFridayshecutcaloriesdrasticallybystickingtodressing-freesalads,leanmeatsandsteamedvegetables,andbyputtingthenixondessertsaltogether....
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- Heworkedfornix.Putthenixonfrying.Itcostmeabsolutelynix.Fathersaidnixonourplan.Thatlittleboylikestokeepnixforhisbrothers.ThebarwasofferingbeerfornixsoIdidn'tspendacentthewholeevening.Isupposemomwillsaynixtousgoingtothemovies.Butinsteadofgoingwiththem...
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