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mCa : mO : mH = 40u : 2*16u : 2*1u
mCa : mO : mH = 40 : 32 : 2
mCa : mO : mH = 20 : 16 : 1
Ca= 40
O=16
H= 1
40g---Ca
2*16g= 32g--- O
2*1g=2g ---- H
stosunek masowy
Ca:O:H
40:32:2
20:16:1
pozdrawiam :)
O= 2x 16u=32u
H= 2x1u=2u
podziel to przez 2 :)