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Dear Anna,
Thank you for your lovely message. I'm so happy to hear you're enjoying the book. I'd be delighted to join you this Sunday and do some cooking together.
Of course, I’ll bring some fresh mangoes from the garden. Looking forward to a fun and healthy cooking session!
Warm regards,
Linda
a. Fe + HNO3 →→ Fe(NO3)3 + NO + H2O
Chất khử : Fe
Chất oxi hóa : HNO3
QT oxi hóa : Fe0 --> Fe+3 + 3e (nhân 1)
QT khử : N+5 + 3e --> N+2 (nhân 1)
Fe +4 HNO3 →→ Fe(NO3)3 + NO +2 H2O
b. KMnO4 + FeSO4 + H2SO4 →→ Fe2(SO4)3 + MnSO4 + K2SO4 + H2O.
→→ Fe2(SO4)3 + MnSO4 + K2SO4 + H2O
Chất khử : FeSO4
Chất oxi hóa : KMnO4
Qt oxi hóa : 2. Fe+2 --> 2. Fe+3 +2. 1e
QT khử : Mn+7 --> Mn+2 + 5e
2 KMnO4 +10 FeSO4 + 8H2SO4 →→ 5Fe2(SO4)3 +2 MnSO4 + K2SO4 +8 H2O.