October 2018 1 40 Report
Tolong bantu ya ;1.logam natrium bereaksi dgn udara membentuk natrium oksida. reaksi itu dpt ditulis dgn persamaan reaksi ......
2. massa molekul relative (Mr) C6H12O6 adalah...
3. mol Zn dlm 660 g Zn adalah....
4. presentase massa air dlm garam hidrat Na2CO3 . 10H2O adalah .....
beserta penyelesaian ya plis bantu saya

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