Yee Miao Ling's answer to Tan Jie Ying's Secondary 3 Chemistry question.

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Yee Miao Ling
Yee Miao Ling's answer
29 answers (Tutor Details)
Hi,
Iron (II) cation, if left exposed to the air, will oxidise to become Iron (III) cation, which usually is brown or reddish-brown in color. :)
Not sure why the right hand side has an arrow pointing down from L to N, without any reaction. Since I don't really see the two substances being related in any way. You may want to ask your teacher about that.