问题标题:
(a)Doyouthinkglucosehasthesamepropertiesasthoseofitsconstituentelement?Explainyouranswer.(b)Ifweaddglucosetoaglassofwater,aglucosesolutionisformed.Bothglucoseandwaterarecompounds.Isglucosesolutionacompoundoramix
问题描述:
(a)Doyouthinkglucosehasthesamepropertiesasthoseofitsconstituentelement?Explainyouranswer.
(b)Ifweaddglucosetoaglassofwater,aglucosesolutionisformed.Bothglucoseandwaterarecompounds.Isglucosesolutionacompoundoramixture?Explainyouranswer.
前提:Glucoseisacompoundmadeupoftheelementscarbon,oxygenandhydrogen.
楼白杨回答:
(a)Ofcoursenot.Glucoseisacompoundformedby3elements,carbon,oxygen,andhydrogen.Ithasitsownproperty.Forexample,it'sacolorlesssolid,easilysolubleinwater.Carbonexistsinformslikediamond,graphite,etc.Oxygenandhydrogenusuallyexistasgases.
(b)Glucosesolutioninwaterisamixtureofwatermoleculesandglucosemolecules.Mixingthemdoesn'tproduceanynewsubstance,andyoucanseparatethemwithoutcreatinganynewmolecules.
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