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Stosunek:
S:O=32:48=2:3
b)mK2S=2*39u+32u
Stosunek:
K:S=78:32=39:16
c)mMgCl2=24u+2*35,5u
Stosunek:
Mg:Cl=24:71
mS 32u 2
------ = ------- = ------ 2 : 3
3mO 48u 3
B) K2S
2mK 78u 39
------ = ------- = ------ 39 : 16
mS 32u 16
C) MgCl2.
mMg 24u 12
------ = ------- = ------ 12 : 35
2mCl 70u 35