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GLIN
masa: 2 * 27u = 54u
102u --- 100%
54u ---- x %
x = (54u * 100%) : 102u ≈ 52,94%
TLEN
masa: 3 * 16u = 48u
102u --- 100%
48u ---- x %
x = (48u * 100%) : 102u ≈ 47,06%
b) CaCO₃ masa: 40u + 12u + 3 * 16u = 100u
WAPŃ
masa: 40u
100u --- 100%
40u ---- x %
x = 40%
WĘGIEL
masa: 12u
100u --- 100%
12u ---- x %
x = 12%
TLEN
masa: 3 * 16u = 48u
100u --- 100%
48u ---- x %
x = 48%