Y空氣入左apple到,個蘋果會change colour??
請回答時,有中和英!!!!
Y空氣入左apple到,個蘋果會change colour??
2007-09-26 5:14 am
回答 (2)
2007-09-29 7:50 pm
apple contains rich iron...
when the apple is cut in to half and expose in the air,
the oxygen in air will react with the iron in apple(rusting).
chemical equation:
4Fe+2O(2)-->2 Fe(2)O(3)
the apple will then become yellow in colour.
the yellow thing is the iron(3)oxide.
when the apple is cut in to half and expose in the air,
the oxygen in air will react with the iron in apple(rusting).
chemical equation:
4Fe+2O(2)-->2 Fe(2)O(3)
the apple will then become yellow in colour.
the yellow thing is the iron(3)oxide.
2007-09-26 5:18 am
becaus個apple氧化囉~^^~
收錄日期: 2021-04-15 16:42:14
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070925000051KK03245