有關Therearetwokindsofch的精選知識
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Therearetwokindsofchanges—chemicalchangeandphysicalchan...
問題詳情:Therearetwokindsofchanges—chemicalchangeandphysicalchange.Inachemicalchange,thereisalwaysanewsubstance(物質)formed.Breakingupwaterintohydrogen(*氣)andoxygen(氧氣)isachemicalchange.Ineachofthe...