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CaCO3=40+12+16*3=100u
B) tlenek wapnia
CaO=40+16=56u
C)wodorotlenek wapnia
Ca(OH)2=40+(16+1)*2=74u
tlenek wapnia - CaO - 1*40u + 1*16u = 56u
wodorotlenek wapnia - Ca(OH)₂ - 1*40u + 2*16u + 2*1u = 74u