siarczan sodu(VI)
Na2SO4
Na= 2*23u= 46u
S=32u
O=4*16u=64u
46u:32u:64u
23u:16u:32u
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siarczan sodu(VI)
Na2SO4
Na= 2*23u= 46u
S=32u
O=4*16u=64u
46u:32u:64u
23u:16u:32u