匿名使用者 1級 2008-07-10 回答

第一句不是機譯的，參考。。

物質發生化學變化是舊鍵的斷裂新鍵的形成過程。在氧化還原反應中反應物發生化學變化伴隨著電子的轉移，電子的轉移數與物質的結構有關，並決定物質的化學性質。當反應達到一定的程度，化學反應即將停止，此時即為化學平衡。

Material occurs to a chemical change is a process of the old chemical bond to cut off and the new old chemical bond to become。In redox reactions in chemical reaction changes accompanied by electronic transfer， electronic transfer of material and the structure and chemical properties of substances decision。 When the reaction to a certain extent， chemical reaction will be discontinued， at this time is the chemical balance。

A chemical change is a process in which reactants are changed into one or more different products。

這話也許對樓主有點參考作用。（化學變化的定義）

匿名使用者 1級 2008-07-10 回答

Material and chemical changes in the old bond fracture the formation of the new bond。 In redox reactions in chemical reaction changes accompanied by electronic transfer， electronic transfer of material and the structure and chemical properties of substances decision。 When the reaction to a certain extent， chemical reaction will be discontinued， at this time is the chemical balance。

匿名使用者 1級 2008-07-10 回答

化學反應將形成新物質，新物質的化學鍵與舊物質的化學鍵必然不同，所以要這麼說。