December 2019 1 261 Report
Suatu molekul mengandung 34.33% Na (Ar=23), 17,91% C (Ar=12), dan 47,96% O (Ar=16). Rumus molekul senyawa tersebut adalah...

(a). NaC2O3
(b). Na2CO3
(c). NaCO2
(d). Na2C2O3
(e). Na2C2O4

p.s : pake cara ya!;))

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