来自高桦的问题
一些化学问题（英文版）1.Ioniccompoundshaveveryhighmeltingpoints.Explainatleasttwoforcesthatcausethisphysicalcharacteristic.2.Listbondsinorderofbondstrengtha.HydrogenbondbetweenH2Ob.CovalentbondbetweenHandOinw
一些化学问题（英文版）
1.Ioniccompoundshaveveryhighmeltingpoints.Explainatleasttwoforcesthatcausethisphysicalcharacteristic.
2.Listbondsinorderofbondstrength
a.HydrogenbondbetweenH2O
b.CovalentbondbetweenHandOinwater
c.IonicbondbetweenNA+andCl-
d.CovalentbondbetweenthetwohydrogenatomsinhydrogengasH2
3.Howmanycalorieswouldittaketoboil100gofwaterthatstartedat25oC?ifonecalorieequals4.184Joules,howmanyJouleswouldittaketoboilthesame100gofwaterstartingat25oC?
最好用英文回答哈,
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2020-01-16 21:37