October 2018 1 80 Report
Tentukan bilangan oksidasi unsur yang digaris bawahi:
1. FeCl₃ (yang digaris bawahinya unsur Fe)
2. Mg₃(PO₄)₂ (yang digaris bawahinya unsur Mg dan P)
3. K₂Cr₂O₇ (yang digaris bawahinya unsur Cr)
4. KMnO₄ (yang digaris bawahinya unsur Mn)
5. Na₂S₂O₃ (yang digaris bawahinya unsur S)

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